dont delete from storage if upload fails

- improve telnet polling
- add readme + license
esp8266-bme280
noerw 8 years ago
parent 5a2189be15
commit 15b3c2f56c

@ -0,0 +1,674 @@
GNU GENERAL PUBLIC LICENSE
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@ -0,0 +1,69 @@
# mobile-sensebox
This is a modular (but probably overcomplicated) sketch for a mobile sensebox.
It measures arbitrary phenomena (currently only implemented: WiFi network count),
which are geocoded and uploaded to the [openSenseMap](https://opensensemap.org) upon wifi connection.
Supports debug logging via telnet on it's own access point + the connected network.
![box setup](box.jpg)
## hardware setup
Written for a ESP8266 ([Wemos D1 R1](http://www.wemos.cc/Products/d1.html)) with a connected GPS Module (NEO-7M),
and based on the [ESP8266 Arduino core](https://github.com/esp8266/Arduino) for Arduino IDE.
The sketch should work with any other ESP variant as well.
The GPS module must provide NMEA sentences & be connected via the hardware serial (GPIOs `0` & `1`)
SoftSerial did not work for me but created many issues (random crashes, due to buffer overflows?).
## software installation
- install [Arduino IDE](https://arduino.cc/en/Main/Software)
- install [ESP8266 Arduino core](https://github.com/esp8266/Arduino#installing-with-boards-manager)
- connect your ESP8266 via USB
- open the file `mobile-sensebox.ino` in the Arduino IDE
- change the configuration to your needs in the file `config.h`
- select the board `Wemos D1 (retired)` (or whatever you have)
- hit upload (the GPS device must not be connected!)
## program behaviour
Once started, the device will idle until a first GPS fix was established.
From then on the following procedure runs repeatedly:
1. **measure** phenomena (wifi scan takes ~1sec)
2. update GPS **location** (takes 0.5-2sec)
3. **store** measurements to local filesystem (SPIFFS)
4. check if internet connection is available & **upload** stored measurements to openSenseMap
5. **idle** until the box moved a given distance and/or a time interval has passed (depends on config, default 25m, 12sec)
Two **hardware switches** are implemented, which enable/disable the measurement- and/or upload-procedure:
By default, connecting pin `15` to `GND` disables the upload,
connecting pin `14` to `GND` disables the measurements.
This can be useful for quickly uploading accumulated stored measurements!
## debug logging
A telnet logger is enabled by default, and provides basic debug output.
You can connect to it both from the created accesspoint (which is there only for this purpose), as well as on the connected wifi network.
So you either..
- connect to the open network `mobile-sensebox` and run `telnet 192.168.1.1`
- connect to the same network as configured in `config.h` and run `telnet <whateverIPtheESPgets>`
Connections are not polled all the time, so you may have to wait a moment until you recieve first data.
Note that, due to the limited single-channel hardware of the ESP8266,
a reconnection to the configured WiFi network fails,
when a client is connected to the telnet logger on the open access point.
## dev environment
Developed using ESP8266 Arduino core v2.3.0 in Arduino IDE v1.6.8.
Depends on the following libraries, of which copies are stored in the `lib/` directory:
- [`Time.h`](https://github.com/PaulStoffregen/Time) for easy extraction of current timestamps
- [`TinyGPS++.h`](http://arduiniana.org/libraries/tinygpsplus/) for NMEA parsing & distance calculation
- [`ESP8266TrueRandom`](https://github.com/marvinroger/ESP8266TrueRandom) for UUID generation
## further resources
- quite helpful [ESP8266 Arduino documentation](https://github.com/esp8266/Arduino/blob/master/doc/reference.md)
- [NEO-7M datasheet](https://www.u-blox.com/sites/default/files/products/documents/NEO-7_DataSheet_(UBX-13003830).pdf)
## license
GPL-3.0

@ -8,7 +8,7 @@
# pragma once
#include <ESP8266WiFi.h>
#define MAX_TELNET_CLIENTS 3 // more
#define MAX_TELNET_CLIENTS 3
class TelnetPrint : public Print {
protected:
@ -18,9 +18,9 @@ class TelnetPrint : public Print {
public:
TelnetPrint(uint16_t port=23) : server(port) {}
void begin() {
void begin(int baudProxy = 0) {
server.begin();
server.setNoDelay(true);
server.setNoDelay(false);
}
void pollClients() {

Binary file not shown.

After

Width:  |  Height:  |  Size: 931 KiB

@ -2,7 +2,7 @@
/* GENERAL */
// interval of the measurements in millisec / meters
#define MEASUREMENT_INTERVAL 10000 // 0 for "as fast as possible"
#define MEASUREMENT_INTERVAL 12000 // 0 for "as fast as possible"
#define MEASUREMENT_DISTANCE_ENABLED true
#define MEASUREMENT_DISTANCE 25
@ -15,14 +15,10 @@
#define MAX_UPLOADS_PER_CYCLE 4
/* WiFi (ESP8266) */
#define WIFI_SSID "Elmo"
#define WIFI_SSID "GIATSCHOOL-NET"
#define WIFI_PASS "XXXXXX"
/* GPS reciever (uBloc NEO-7M) connected to hardware serial (SoftwareSerial does not work well!!) */
/* GPS reciever (uBlox NEO-7M) connected to hardware serial (SoftwareSerial does not work well!!) */
#define GPS_BAUD 9600
#define GPS_INTERVAL 1000 // update interval of the gps device in ms
@ -30,10 +26,8 @@
#define API_ENDPOINT "api.osem.vo1d.space"
// SHA1 of the API SSL cert
#define API_FINGERPRINT "A2 38 74 C7 B0 71 07 D4 2A 1C A5 6D 0D 05 3E 0A 90 68 A5 CB"
#define API_KEY_LENGTH 24 // length of the keys
#define API_KEY "XXXXXXXXXXX"
#define ID_BOX "57c7f3291421551100bf13c8"
#define ID_SENSOR_WIFI_APS "57c7f3291421551100bf13ca"
#define ID_SENSOR_WIFI_NET "57cdd4ce1421551100bf17c5"
#define ID_SENSOR_WIFI_OPEN "57cdd4ce1421551100bf17c6"

@ -1,6 +1,6 @@
#pragma once
#include <TinyGPS++.h>
#include <Time.h>
#include "lib/TinyGPS++/TinyGPS++.h"
#include "lib/Time/Time.h"
#include "config.h"
class Gps {

@ -0,0 +1,2 @@
/.cproject
/.project

@ -0,0 +1,168 @@
/*
* TrueRandom - A true random number generator for Arduino.
* This is variant of original work originally implemented as:
* https://code.google.com/archive/p/tinkerit/ https://github.com/Cathedrow/TrueRandom
* Copyright (c) 2010 Peter Knight, Tinker.it! All rights reserved.
* Now modified for the ESP8266
*/
#include "ESP8266TrueRandom.h"
ICACHE_FLASH_ATTR ESP8266TrueRandomClass::ESP8266TrueRandomClass() {
useRNG = true;
lastYield = 0;
}
ICACHE_FLASH_ATTR int ESP8266TrueRandomClass::randomBitRaw(void) {
// Needed to keep wifi stack running smoothly
// And to avoid wdt reset
if (lastYield == 0 || millis() - lastYield >= 50) {
yield();
lastYield = millis();
}
uint8_t bit = useRNG
? (int)RANDOM_REG32 //using the onboard hardware random number generator (esp8266_peri.h)
: analogRead(A0); //using A0 / TOUT
return bit & 1;
}
ICACHE_FLASH_ATTR int ESP8266TrueRandomClass::randomBitRaw2(void) {
// Software whiten bits using Von Neumann algorithm
//
// von Neumann, John (1951). "Various techniques used in connection
// with random digits". National Bureau of Standards Applied Math Series
// 12:36.
//
for(;;) {
int a = randomBitRaw() | (randomBitRaw()<<1);
if (a==1) return 0; // 1 to 0 transition: log a zero bit
if (a==2) return 1; // 0 to 1 transition: log a one bit
// For other cases, try again.
}
return 0;
}
ICACHE_FLASH_ATTR int ESP8266TrueRandomClass::randomBit(void) {
// Software whiten bits using Von Neumann algorithm
//
// von Neumann, John (1951). "Various techniques used in connection
// with random digits". National Bureau of Standards Applied Math Series
// 12:36.
//
for(;;) {
int a = randomBitRaw2() | (randomBitRaw2()<<1);
if (a==1) return 0; // 1 to 0 transition: log a zero bit
if (a==2) return 1; // 0 to 1 transition: log a one bit
// For other cases, try again.
}
return 0;
}
ICACHE_FLASH_ATTR char ESP8266TrueRandomClass::randomByte(void) {
char result = 0;
uint8_t i;
for (i=8; i--;) result += result + randomBit();
return result;
}
ICACHE_FLASH_ATTR int ESP8266TrueRandomClass::rand() {
int result = 0;
uint8_t i;
for (i=15; i--;) result += result + randomBit();
return result;
}
ICACHE_FLASH_ATTR long ESP8266TrueRandomClass::random() {
long result = 0;
uint8_t i;
for (i=31; i--;) result += result + randomBit();
return result;
}
ICACHE_FLASH_ATTR long ESP8266TrueRandomClass::random(long howBig) {
long randomValue;
long topBit;
long bitPosition;
if (!howBig) return 0;
randomValue = 0;
if (howBig & (howBig-1)) {
// Range is not a power of 2 - use slow method
topBit = howBig-1;
topBit |= topBit>>1;
topBit |= topBit>>2;
topBit |= topBit>>4;
topBit |= topBit>>8;
topBit |= topBit>>16;
topBit = (topBit+1) >> 1;
bitPosition = topBit;
do {
// Generate the next bit of the result
if (randomBit()) randomValue |= bitPosition;
// Check if bit
if (randomValue >= howBig) {
// Number is over the top limit - start again.
randomValue = 0;
bitPosition = topBit;
} else {
// Repeat for next bit
bitPosition >>= 1;
}
} while (bitPosition);
} else {
// Special case, howBig is a power of 2
bitPosition = howBig >> 1;
while (bitPosition) {
if (randomBit()) randomValue |= bitPosition;
bitPosition >>= 1;
}
}
return randomValue;
}
ICACHE_FLASH_ATTR long ESP8266TrueRandomClass::random(long howSmall, long howBig) {
if (howSmall >= howBig) return howSmall;
long diff = howBig - howSmall;
return ESP8266TrueRandomClass::random(diff) + howSmall;
}
ICACHE_FLASH_ATTR void ESP8266TrueRandomClass::memfill(char* location, int size) {
for (;size--;) *location++ = randomByte();
}
ICACHE_FLASH_ATTR void ESP8266TrueRandomClass::mac(uint8_t* macLocation) {
memfill((char*)macLocation,6);
}
ICACHE_FLASH_ATTR void ESP8266TrueRandomClass::uuid(uint8_t* uuidLocation) {
// Generate a Version 4 UUID according to RFC4122
memfill((char*)uuidLocation,16);
// Although the UUID contains 128 bits, only 122 of those are random.
// The other 6 bits are fixed, to indicate a version number.
uuidLocation[6] = 0x40 | (0x0F & uuidLocation[6]);
uuidLocation[8] = 0x80 | (0x3F & uuidLocation[8]);
}
ICACHE_FLASH_ATTR String ESP8266TrueRandomClass::uuidToString(uint8_t* uuidLocation) {
String string = "";
int i;
for (i=0; i<16; i++) {
if (i==4) string += "-";
if (i==6) string += "-";
if (i==8) string += "-";
if (i==10) string += "-";
int topDigit = uuidLocation[i] >> 4;
int bottomDigit = uuidLocation[i] & 0x0f;
// High hex digit
string += "0123456789abcdef"[topDigit];
// Low hex digit
string += "0123456789abcdef"[bottomDigit];
}
return string;
}
ESP8266TrueRandomClass ESP8266TrueRandom;

@ -0,0 +1,36 @@
/*
* TrueRandom - A true random number generator for Arduino.
* This is variant of original work originally implemented as:
* https://code.google.com/archive/p/tinkerit/ https://github.com/Cathedrow/TrueRandom
* Copyright (c) 2010 Peter Knight, Tinker.it! All rights reserved.
* Now modified for the ESP8266
*/
#ifndef ESP8266TrueRandom_h
#define ESP8266TrueRandom_h
#include <Arduino.h>
#include <inttypes.h>
class ESP8266TrueRandomClass
{
public:
ICACHE_FLASH_ATTR ESP8266TrueRandomClass();
ICACHE_FLASH_ATTR int rand();
ICACHE_FLASH_ATTR long random();
ICACHE_FLASH_ATTR long random(long howBig);
ICACHE_FLASH_ATTR long random(long howsmall, long how);
ICACHE_FLASH_ATTR int randomBit(void);
ICACHE_FLASH_ATTR char randomByte(void);
ICACHE_FLASH_ATTR void memfill(char* location, int size);
ICACHE_FLASH_ATTR void mac(uint8_t* macLocation);
ICACHE_FLASH_ATTR void uuid(uint8_t* uuidLocation);
ICACHE_FLASH_ATTR String uuidToString(uint8_t* uuidLocation);
bool useRNG;
private:
unsigned long lastYield;
ICACHE_FLASH_ATTR int randomBitRaw(void);
ICACHE_FLASH_ATTR int randomBitRaw2(void);
};
extern ESP8266TrueRandomClass ESP8266TrueRandom;
#endif

@ -0,0 +1,166 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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@ -0,0 +1,100 @@
# ESP8266TrueRandom
TrueRandom Arduino library for the ESP8266
**The code is only slightly modified from [tinkerit TrueRandom](https://code.google.com/archive/p/tinkerit/wikis/TrueRandom.wiki) to work on the ESP8266, and this is probably not as random as the original. However, it still performs better than the original random function, based on my tests. What I wanted was a library to generate an UUID for an home automation system using ESP8266, and unless you have millions of devices, I think this is random enough to avoid conflicts.**
## Introduction
ESP8266TrueRandom generates true random numbers on ESP8266. They are different every time you start your program, and are truly unpredictable unlike the default Arduino random() function.
## Compatibility
ESP8266TrueRandom currently functions on the ESP8266. ESP8266TrueRandom reads the ESP8266 internal hardware random number generator register by default or alternatively can use the A0/TOUT pin when useRNG is set to false. If using A0/TOUT do not connect anything to this pin and leave it floating.
## Download
[Download ESP8266TrueRandom library](https://github.com/marvinroger/ESP8266TrueRandom/archive/master.zip). Extract the zip file, and copy the directory to your Arduino libraries folder.
## What happens when you use the Arduino random() function?
The Arduino default random() function generates what appear to be random numbers. They are actually calculated from a formula. On reset, the formula is reset at a start point, then progresses through a long sequence of random looking numbers. However, ESP8266 starts at the same point in the sequence every reset. You can move to a different part of the sequence using srandom(), but how do you get a random start point from in the first place?
What happens when you use ESP8266TrueRandom.random() function?
You get a random number. Really random. Different every time you restart.
## Example
```c++
#include <ESP8266TrueRandom.h>
void setup() {
Serial.begin(115200);
Serial.print("I threw a random die and got ");
Serial.print(random(1,7));
Serial.print(". Then I threw a TrueRandom die and got ");
Serial.println(ESP8266TrueRandom.random(1,7));
}
void loop() {
; // Do nothing
}
```
Upload that code to an ESP8266 and watch it on the Serial Monitor at 115200 baud. The random() function returns the same value every time, but the ESP8266TrueRandom version is always different.
## ESP8266TrueRandom basic functions
The existing random functions of Arduino are replicated in ESP8266TrueRandom.
### ESP8266TrueRandom.random()
Like the Arduino library and ANSI C, this generates a random number between 0 and the highest signed long integer 2,147,483,647.
### ESP8266TrueRandom.random(n)
This generates a random number between 0 and (n-1). So random(6) will generate numbers between 0 and 5.
### ESP8266TrueRandom.random(a,b)
This generates a random number between a and (b-1). So random(1,7) will generate numbers between 1 and 6.
## ESP8266TrueRandom advanced functions
### ESP8266TrueRandom.randomBit()
Generating true random numbers takes time, so it can be useful to only generate as many random bits as you need. randomBit() generates a 0 or a 1 with 50% probability. This is the core function from which the other ESP8266TrueRandom libraries are built.
### ESP8266TrueRandom.randomByte()
Generates a random byte between 0 and 255. Equivalent to random(256).
### ESP8266TrueRandom.rand()
Like the ANSI C rand() command, this generates a random number between 0 and the highest signed integer 32767.
### ESP8266TrueRandom.memfill(address, length)
Fills a block of bytes with random numbers. (length) bytes are filled in total, starting at the given (address).
## ESP8266TrueRandom specialist functions
### ESP8266TrueRandom.mac(address)
When operating devices on an Ethernet network, each device must have a unique MAC address. Officially, MAC addresses should be assigned formally via the [IEEE Registration Authority](http://standards.ieee.org/regauth/index.html). However, for practical purposes, MAC addresses can be randomly assigned without problems. This function writes a 6 byte MAC address to a given address. Randomly generated MAC addresses are great for projects or workshops involving large numbers of Arduino Ethernet shields, as each shield has a different MAC address, even though they are running identical code. See the MacAddress example which shows this in use.
### ESP8266TrueRandom.uuid(address)
UUIDs are unique identifiers. They are 16 bytes (128 bits) long, which means that generating them randomly This generates a random UUID, and writes it to an array. UUIDs are globally unique numbers that are often used in web services and production electronics. ESP8266TrueRandom can produce any one of 5,316,911,983,139,663,491,615,228,241,121,378,304 different numbers. You're more likely to win top prize in the national lottery 3 times in a row than get two matching UUIDs.
### ESP8266TrueRandom.uuidToString(address)
Returns a String containing the string representation of the given UUID
## How TrueRandom works
ESP8266TrueRandom achieves random numbers by reading the ESP8266 internal hardware random number generator register or by by measuring the A0/TOUT pin. However, that isn't noisy enough so a [von Neumann whitening algorithm](http://en.wikipedia.org/wiki/Hardware_random_number_generator) gathers enough entropy from multiple readings to ensure a fair distribution of 1s and 0s.
The other functions within ESP8266TrueRandom construct the requested values by gathering just enough random bits to produce the required numbers. Generating a random bit takes time, so a significant part of the code works to ensure the random bits are used as efficiently as possible.

@ -0,0 +1,48 @@
#include "ESP8266TrueRandom.h"
unsigned long startTime;
int i;
void setup() {
Serial.begin(9600);
Serial.println("ESP8266TrueRandom benchmark");
Serial.println("--------------------");
Serial.println();
Serial.print("Arduino clock speed: ");
Serial.print(F_CPU/1000000);
Serial.println("MHz");
Serial.print("randomBit(): ");
startTime = millis();
ESP8266TrueRandom.randomBit();
Serial.print(millis() - startTime);
Serial.println("ms");
Serial.print("randomByte(): ");
startTime = millis();
ESP8266TrueRandom.randomByte();
Serial.print(millis() - startTime);
Serial.println("ms");
Serial.print("random(100): ");
startTime = millis();
ESP8266TrueRandom.random(100);
Serial.print(millis() - startTime);
Serial.println("ms");
Serial.print("random(65536): ");
startTime = millis();
ESP8266TrueRandom.random(65536);
Serial.print(millis() - startTime);
Serial.println("ms");
Serial.print("random(65537): ");
startTime = millis();
ESP8266TrueRandom.random(65537);
Serial.print(millis() - startTime);
Serial.println("ms");
}
void loop() {
}

@ -0,0 +1,33 @@
/*
* A simple electronic die.
*
* Press the reset button to throw a set of dice.
*
*/
#include "ESP8266TrueRandom.h"
void setup() {
Serial.begin(9600);
Serial.println("Throwing...");
delay(1000);
Serial.print("6 sided die: ");
Serial.println(ESP8266TrueRandom.random(1,7));
Serial.print("4 sided die: ");
Serial.println(ESP8266TrueRandom.random(1,5));
Serial.print("8 sided die: ");
Serial.println(ESP8266TrueRandom.random(1,9));
Serial.print("10 sided die: ");
Serial.println(ESP8266TrueRandom.random(1,11));
Serial.print("12 sided die: ");
Serial.println(ESP8266TrueRandom.random(1,13));
Serial.print("20 sided die: ");
Serial.println(ESP8266TrueRandom.random(1,21));
Serial.print("100 sided die: ");
Serial.println(ESP8266TrueRandom.random(1,101));
}
void loop() {
; // Do nothing
}

@ -0,0 +1,59 @@
/*
* A magic 8 ball.
*
* Press the reset button to see into the future.
*
* View the answer to your question in the Serial Monitor, at 19200 baud.
*
* Press the Arduino reset button to ask another question.
*
*/
#include "ESP8266TrueRandom.h"
char* answers[20] = {
"As I see it, yes",
"It is certain",
"It is decidedly so",
"Mostly likely",
"Outlook good",
"Signs point to yes",
"Without a doubt",
"Yes",
"Yes - definitely",
"You may rely on it",
"Reply hazy, try again",
"Ask again later",
"Better not tell you now",
"Cannot predict now",
"Concentrate and ask again",
"Don't count on it",
"My reply is no",
"My sources say no",
"Outlook not so good",
"Very doubtful"
};
int answerNumber;
void setup() {
Serial.begin(9600);
Serial.print("The answer is ");
// Dramatic pause
delay(1000);
Serial.print(". ");
delay(1000);
Serial.print(". ");
delay(1000);
Serial.print(". ");
delay(1000);
answerNumber = ESP8266TrueRandom.random(20);
Serial.println( answers[answerNumber] );
}
void loop() {
; // Do nothing
}

@ -0,0 +1,28 @@
/*
* SetRandomSeed.
*
* You can use ESP8266TrueRandom to set the seed for the normal Arduino
* random number generator.
*
* That way you can quickly generate random numbers that are
* different every time using the random number generator.
*/
#include "ESP8266TrueRandom.h"
int i;
void setup() {
Serial.begin(9600);
Serial.println("Here are some pseudo random digits.");
for (i=1;i<=20;i++) Serial.print(random(10));
Serial.println();
randomSeed(ESP8266TrueRandom.random());
Serial.println("Here are some random seeded pseudo random digits.");
for (i=1;i<=20;i++) Serial.print(random(10));
Serial.println();
}
void loop() {
}

@ -0,0 +1,37 @@
/*
* Uuid
*
* UUIDs are unique numbers that are used for identifying individual units,
* functions, programmes, or whatever you want to tag.
*
* In this demo, press the Arduino Reset button to generate a new number.
*
* UUIDs can be assigned sequentially from allocated blocks of numbers, but
* they are most powerful when randomly assigned. UUIDs are such big numbers
* that, for all effective purposes, no two numbers will ever match.
*
* UUIDs are particularly useful in web-aware devices, or radio networks.
*
* For a discussion of the use of UUIDs, see
* http://en.wikipedia.org/wiki/Universally_Unique_Identifier
*
* For implementation details of UUIDs, see
* http://tools.ietf.org/html/rfc4122
*/
#include "ESP8266TrueRandom.h"
byte uuidNumber[16]; // UUIDs in binary form are 16 bytes long
void setup() {
Serial.begin(9600);
// Generate a new UUID
ESP8266TrueRandom.uuid(uuidNumber);
String uuidStr = ESP8266TrueRandom.uuidToString(uuidNumber);
Serial.println("The UUID number is " + uuidStr);
}
void loop() {
}

@ -0,0 +1,27 @@
#######################################
# Syntax Coloring Map For TrueRandom
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
ESP8266TrueRandom KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
rand KEYWORD2
random KEYWORD2
randomBit KEYWORD2
randomByte KEYWORD2
memfill KEYWORD2
mac KEYWORD2
uuid KEYWORD2
uuidToString KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

@ -0,0 +1,97 @@
/* DateStrings.cpp
* Definitions for date strings for use with the Time library
*
* Updated for Arduino 1.5.7 18 July 2014
*
* No memory is consumed in the sketch if your code does not call any of the string methods
* You can change the text of the strings, make sure the short strings are each exactly 3 characters
* the long strings can be any length up to the constant dt_MAX_STRING_LEN defined in Time.h
*
*/
#if defined(__AVR__)
#include <avr/pgmspace.h>
#else
// for compatiblity with Arduino Due and Teensy 3.0 and maybe others?
#define PROGMEM
#define PGM_P const char *
#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
#define pgm_read_word(addr) (*(const unsigned char **)(addr))
#define strcpy_P(dest, src) strcpy((dest), (src))
#endif
#include <string.h> // for strcpy_P or strcpy
#include "Time.h"
// the short strings for each day or month must be exactly dt_SHORT_STR_LEN
#define dt_SHORT_STR_LEN 3 // the length of short strings
static char buffer[dt_MAX_STRING_LEN+1]; // must be big enough for longest string and the terminating null
const char monthStr0[] PROGMEM = "";
const char monthStr1[] PROGMEM = "January";
const char monthStr2[] PROGMEM = "February";
const char monthStr3[] PROGMEM = "March";
const char monthStr4[] PROGMEM = "April";
const char monthStr5[] PROGMEM = "May";
const char monthStr6[] PROGMEM = "June";
const char monthStr7[] PROGMEM = "July";
const char monthStr8[] PROGMEM = "August";
const char monthStr9[] PROGMEM = "September";
const char monthStr10[] PROGMEM = "October";
const char monthStr11[] PROGMEM = "November";
const char monthStr12[] PROGMEM = "December";
const PROGMEM char * const PROGMEM monthNames_P[] =
{
monthStr0,monthStr1,monthStr2,monthStr3,monthStr4,monthStr5,monthStr6,
monthStr7,monthStr8,monthStr9,monthStr10,monthStr11,monthStr12
};
const char monthShortNames_P[] PROGMEM = "ErrJanFebMarAprMayJunJulAugSepOctNovDec";
const char dayStr0[] PROGMEM = "Err";
const char dayStr1[] PROGMEM = "Sunday";
const char dayStr2[] PROGMEM = "Monday";
const char dayStr3[] PROGMEM = "Tuesday";
const char dayStr4[] PROGMEM = "Wednesday";
const char dayStr5[] PROGMEM = "Thursday";
const char dayStr6[] PROGMEM = "Friday";
const char dayStr7[] PROGMEM = "Saturday";
const PROGMEM char * const PROGMEM dayNames_P[] =
{
dayStr0,dayStr1,dayStr2,dayStr3,dayStr4,dayStr5,dayStr6,dayStr7
};
const char dayShortNames_P[] PROGMEM = "ErrSunMonTueWedThuFriSat";
/* functions to return date strings */
char* monthStr(uint8_t month)
{
strcpy_P(buffer, (PGM_P)pgm_read_word(&(monthNames_P[month])));
return buffer;
}
char* monthShortStr(uint8_t month)
{
for (int i=0; i < dt_SHORT_STR_LEN; i++)
buffer[i] = pgm_read_byte(&(monthShortNames_P[i+ (month*dt_SHORT_STR_LEN)]));
buffer[dt_SHORT_STR_LEN] = 0;
return buffer;
}
char* dayStr(uint8_t day)
{
strcpy_P(buffer, (PGM_P)pgm_read_word(&(dayNames_P[day])));
return buffer;
}
char* dayShortStr(uint8_t day)
{
uint8_t index = day*dt_SHORT_STR_LEN;
for (int i=0; i < dt_SHORT_STR_LEN; i++)
buffer[i] = pgm_read_byte(&(dayShortNames_P[index + i]));
buffer[dt_SHORT_STR_LEN] = 0;
return buffer;
}

@ -0,0 +1,131 @@
Readme file for Arduino Time Library
Time is a library that provides timekeeping functionality for Arduino.
The code is derived from the Playground DateTime library but is updated
to provide an API that is more flexable and easier to use.
A primary goal was to enable date and time functionality that can be used with
a variety of external time sources with minimum differences required in sketch logic.
Example sketches illustrate how similar sketch code can be used with: a Real Time Clock,
internet NTP time service, GPS time data, and Serial time messages from a computer
for time synchronization.
The functions available in the library include:
hour(); // the hour now (0-23)
minute(); // the minute now (0-59)
second(); // the second now (0-59)
day(); // the day now (1-31)
weekday(); // day of the week, Sunday is day 0
month(); // the month now (1-12)
year(); // the full four digit year: (2009, 2010 etc)
there are also functions to return the hour in 12 hour format
hourFormat12(); // the hour now in 12 hour format
isAM(); // returns true if time now is AM
isPM(); // returns true if time now is PM
now(); // returns the current time as seconds since Jan 1 1970
The time and date functions can take an optional parameter for the time. This prevents
errors if the time rolls over between elements. For example, if a new minute begins
between getting the minute and second, the values will be inconsistent. Using the
following functions eliminates this probglem
time_t t = now(); // store the current time in time variable t
hour(t); // returns the hour for the given time t
minute(t); // returns the minute for the given time t
second(t); // returns the second for the given time t
day(t); // the day for the given time t
weekday(t); // day of the week for the given time t
month(t); // the month for the given time t
year(t); // the year for the given time t
Functions for managing the timer services are:
setTime(t); // set the system time to the give time t
setTime(hr,min,sec,day,mnth,yr); // alternative to above, yr is 2 or 4 digit yr (2010 or 10 sets year to 2010)
adjustTime(adjustment); // adjust system time by adding the adjustment value
timeStatus(); // indicates if time has been set and recently synchronized
// returns one of the following enumerations:
timeNotSet // the time has never been set, the clock started at Jan 1 1970
timeNeedsSync // the time had been set but a sync attempt did not succeed
timeSet // the time is set and is synced
Time and Date values are not valid if the status is timeNotSet. Otherwise values can be used but
the returned time may have drifted if the status is timeNeedsSync.
setSyncProvider(getTimeFunction); // set the external time provider
setSyncInterval(interval); // set the number of seconds between re-sync
There are many convenience macros in the time.h file for time constants and conversion of time units.
To use the library, copy the download to the Library directory.
The Time directory contains the Time library and some example sketches
illustrating how the library can be used with various time sources:
- TimeSerial.pde shows Arduino as a clock without external hardware.
It is synchronized by time messages sent over the serial port.
A companion Processing sketch will automatically provide these messages
if it is running and connected to the Arduino serial port.
- TimeSerialDateStrings.pde adds day and month name strings to the sketch above
Short (3 character) and long strings are available to print the days of
the week and names of the months.
- TimeRTC uses a DS1307 real time clock to provide time synchronization.
A basic RTC library named DS1307RTC is included in the download.
To run this sketch the DS1307RTC library must be installed.
- TimeRTCSet is similar to the above and adds the ability to set the Real Time Clock
- TimeRTCLog demonstrates how to calculate the difference between times.
It is a vary simple logger application that monitors events on digtial pins
and prints (to the serial port) the time of an event and the time period since the previous event.
- TimeNTP uses the Arduino Ethernet shield to access time using the internet NTP time service.
The NTP protocol uses UDP and the UdpBytewise library is required, see:
http://bitbucket.org/bjoern/arduino_osc/src/14667490521f/libraries/Ethernet/
- TimeGPS gets time from a GPS
This requires the TinyGPS library from Mikal Hart:
http://arduiniana.org/libraries/TinyGPS
Differences between this code and the playground DateTime library
although the Time library is based on the DateTime codebase, the API has changed.
Changes in the Time library API:
- time elements are functions returning int (they are variables in DateTime)
- Years start from 1970
- days of the week and months start from 1 (they start from 0 in DateTime)
- DateStrings do not require a seperate library
- time elements can be accessed non-atomically (in DateTime they are always atomic)
- function added to automatically sync time with extrnal source
- localTime and maketime parameters changed, localTime renamed to breakTime
Technical notes:
Internal system time is based on the standard Unix time_t.
The value is the number of seconds since Jan 1 1970.
System time begins at zero when the sketch starts.
The internal time can be automatically synchronized at regular intervals to an external time source.
This is enabled by calling the setSyncProvider(provider) function - the provider argument is
the address of a function that returns the current time as a time_t.
See the sketches in the examples directory for usage.
The default interval for re-syncing the time is 5 minutes but can be changed by calling the
setSyncInterval( interval) method to set the number of seconds between re-sync attempts.
The Time library defines a structure for holding time elements that is a compact version of the C tm structure.
All the members of the Arduino tm structure are bytes and the year is offset from 1970.
Convenience macros provide conversion to and from the Arduino format.
Low level functions to convert between system time and individual time elements are provided:
breakTime( time, &tm); // break time_t into elements stored in tm struct
makeTime( &tm); // return time_t from elements stored in tm struct
The DS1307RTC library included in the download provides an example of how a time provider
can use the low level functions to interface with the Time library.

@ -0,0 +1,321 @@
/*
time.c - low level time and date functions
Copyright (c) Michael Margolis 2009-2014
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
1.0 6 Jan 2010 - initial release
1.1 12 Feb 2010 - fixed leap year calculation error
1.2 1 Nov 2010 - fixed setTime bug (thanks to Korman for this)
1.3 24 Mar 2012 - many edits by Paul Stoffregen: fixed timeStatus() to update
status, updated examples for Arduino 1.0, fixed ARM
compatibility issues, added TimeArduinoDue and TimeTeensy3
examples, add error checking and messages to RTC examples,
add examples to DS1307RTC library.
1.4 5 Sep 2014 - compatibility with Arduino 1.5.7
*/
#if ARDUINO >= 100
#include <Arduino.h>
#else
#include <WProgram.h>
#endif
#include "Time.h"
static tmElements_t tm; // a cache of time elements
static time_t cacheTime; // the time the cache was updated
static uint32_t syncInterval = 300; // time sync will be attempted after this many seconds
void refreshCache(time_t t) {
if (t != cacheTime) {
breakTime(t, tm);
cacheTime = t;
}
}
int hour() { // the hour now
return hour(now());
}
int hour(time_t t) { // the hour for the given time
refreshCache(t);
return tm.Hour;
}
int hourFormat12() { // the hour now in 12 hour format
return hourFormat12(now());
}
int hourFormat12(time_t t) { // the hour for the given time in 12 hour format
refreshCache(t);
if( tm.Hour == 0 )
return 12; // 12 midnight
else if( tm.Hour > 12)
return tm.Hour - 12 ;
else
return tm.Hour ;
}
uint8_t isAM() { // returns true if time now is AM
return !isPM(now());
}
uint8_t isAM(time_t t) { // returns true if given time is AM
return !isPM(t);
}
uint8_t isPM() { // returns true if PM
return isPM(now());
}
uint8_t isPM(time_t t) { // returns true if PM
return (hour(t) >= 12);
}
int minute() {
return minute(now());
}
int minute(time_t t) { // the minute for the given time
refreshCache(t);
return tm.Minute;
}
int second() {
return second(now());
}
int second(time_t t) { // the second for the given time
refreshCache(t);
return tm.Second;
}
int day(){
return(day(now()));
}
int day(time_t t) { // the day for the given time (0-6)
refreshCache(t);
return tm.Day;
}
int weekday() { // Sunday is day 1
return weekday(now());
}
int weekday(time_t t) {
refreshCache(t);
return tm.Wday;
}
int month(){
return month(now());
}
int month(time_t t) { // the month for the given time
refreshCache(t);
return tm.Month;
}
int year() { // as in Processing, the full four digit year: (2009, 2010 etc)
return year(now());
}
int year(time_t t) { // the year for the given time
refreshCache(t);
return tmYearToCalendar(tm.Year);
}
/*============================================================================*/
/* functions to convert to and from system time */
/* These are for interfacing with time serivces and are not normally needed in a sketch */
// leap year calulator expects year argument as years offset from 1970
#define LEAP_YEAR(Y) ( ((1970+Y)>0) && !((1970+Y)%4) && ( ((1970+Y)%100) || !((1970+Y)%400) ) )
static const uint8_t monthDays[]={31,28,31,30,31,30,31,31,30,31,30,31}; // API starts months from 1, this array starts from 0
void breakTime(time_t timeInput, tmElements_t &tm){
// break the given time_t into time components
// this is a more compact version of the C library localtime function
// note that year is offset from 1970 !!!
uint8_t year;
uint8_t month, monthLength;
uint32_t time;
unsigned long days;
time = (uint32_t)timeInput;
tm.Second = time % 60;
time /= 60; // now it is minutes
tm.Minute = time % 60;
time /= 60; // now it is hours
tm.Hour = time % 24;
time /= 24; // now it is days
tm.Wday = ((time + 4) % 7) + 1; // Sunday is day 1
year = 0;
days = 0;
while((unsigned)(days += (LEAP_YEAR(year) ? 366 : 365)) <= time) {
year++;
}
tm.Year = year; // year is offset from 1970
days -= LEAP_YEAR(year) ? 366 : 365;
time -= days; // now it is days in this year, starting at 0
days=0;
month=0;
monthLength=0;
for (month=0; month<12; month++) {
if (month==1) { // february
if (LEAP_YEAR(year)) {
monthLength=29;
} else {
monthLength=28;
}
} else {
monthLength = monthDays[month];
}
if (time >= monthLength) {
time -= monthLength;
} else {
break;
}
}
tm.Month = month + 1; // jan is month 1
tm.Day = time + 1; // day of month
}
time_t makeTime(tmElements_t &tm){
// assemble time elements into time_t
// note year argument is offset from 1970 (see macros in time.h to convert to other formats)
// previous version used full four digit year (or digits since 2000),i.e. 2009 was 2009 or 9
int i;
uint32_t seconds;
// seconds from 1970 till 1 jan 00:00:00 of the given year
seconds= tm.Year*(SECS_PER_DAY * 365);
for (i = 0; i < tm.Year; i++) {
if (LEAP_YEAR(i)) {
seconds += SECS_PER_DAY; // add extra days for leap years
}
}
// add days for this year, months start from 1
for (i = 1; i < tm.Month; i++) {
if ( (i == 2) && LEAP_YEAR(tm.Year)) {
seconds += SECS_PER_DAY * 29;
} else {
seconds += SECS_PER_DAY * monthDays[i-1]; //monthDay array starts from 0
}
}
seconds+= (tm.Day-1) * SECS_PER_DAY;
seconds+= tm.Hour * SECS_PER_HOUR;
seconds+= tm.Minute * SECS_PER_MIN;
seconds+= tm.Second;
return (time_t)seconds;
}
/*=====================================================*/
/* Low level system time functions */
static uint32_t sysTime = 0;
static uint32_t prevMillis = 0;
static uint32_t nextSyncTime = 0;
static timeStatus_t Status = timeNotSet;
getExternalTime getTimePtr; // pointer to external sync function
//setExternalTime setTimePtr; // not used in this version
#ifdef TIME_DRIFT_INFO // define this to get drift data
time_t sysUnsyncedTime = 0; // the time sysTime unadjusted by sync
#endif
time_t now() {
// calculate number of seconds passed since last call to now()
while (millis() - prevMillis >= 1000) {
// millis() and prevMillis are both unsigned ints thus the subtraction will always be the absolute value of the difference
sysTime++;
prevMillis += 1000;
#ifdef TIME_DRIFT_INFO
sysUnsyncedTime++; // this can be compared to the synced time to measure long term drift
#endif
}
if (nextSyncTime <= sysTime) {
if (getTimePtr != 0) {
time_t t = getTimePtr();
if (t != 0) {
setTime(t);
} else {
nextSyncTime = sysTime + syncInterval;
Status = (Status == timeNotSet) ? timeNotSet : timeNeedsSync;
}
}
}
return (time_t)sysTime;
}
void setTime(time_t t) {
#ifdef TIME_DRIFT_INFO
if(sysUnsyncedTime == 0)
sysUnsyncedTime = t; // store the time of the first call to set a valid Time
#endif
sysTime = (uint32_t)t;
nextSyncTime = (uint32_t)t + syncInterval;
Status = timeSet;
prevMillis = millis(); // restart counting from now (thanks to Korman for this fix)
}
void setTime(int hr,int min,int sec,int dy, int mnth, int yr){
// year can be given as full four digit year or two digts (2010 or 10 for 2010);
//it is converted to years since 1970
if( yr > 99)
yr = yr - 1970;
else
yr += 30;
tm.Year = yr;
tm.Month = mnth;
tm.Day = dy;
tm.Hour = hr;
tm.Minute = min;
tm.Second = sec;
setTime(makeTime(tm));
}
void adjustTime(long adjustment) {
sysTime += adjustment;
}
// indicates if time has been set and recently synchronized
timeStatus_t timeStatus() {
now(); // required to actually update the status
return Status;
}
void setSyncProvider( getExternalTime getTimeFunction){
getTimePtr = getTimeFunction;
nextSyncTime = sysTime;
now(); // this will sync the clock
}
void setSyncInterval(time_t interval){ // set the number of seconds between re-sync
syncInterval = (uint32_t)interval;
nextSyncTime = sysTime + syncInterval;
}

@ -0,0 +1 @@
#include "TimeLib.h"

@ -0,0 +1,144 @@
/*
time.h - low level time and date functions
*/
/*
July 3 2011 - fixed elapsedSecsThisWeek macro (thanks Vincent Valdy for this)
- fixed daysToTime_t macro (thanks maniacbug)
*/
#ifndef _Time_h
#ifdef __cplusplus
#define _Time_h
#include <inttypes.h>
#ifndef __AVR__
#include <sys/types.h> // for __time_t_defined, but avr libc lacks sys/types.h
#endif
#if !defined(__time_t_defined) // avoid conflict with newlib or other posix libc
typedef unsigned long time_t;
#endif
// This ugly hack allows us to define C++ overloaded functions, when included
// from within an extern "C", as newlib's sys/stat.h does. Actually it is
// intended to include "time.h" from the C library (on ARM, but AVR does not
// have that file at all). On Mac and Windows, the compiler will find this
// "Time.h" instead of the C library "time.h", so we may cause other weird
// and unpredictable effects by conflicting with the C library header "time.h",
// but at least this hack lets us define C++ functions as intended. Hopefully
// nothing too terrible will result from overriding the C library header?!
extern "C++" {
typedef enum {timeNotSet, timeNeedsSync, timeSet
} timeStatus_t ;
typedef enum {
dowInvalid, dowSunday, dowMonday, dowTuesday, dowWednesday, dowThursday, dowFriday, dowSaturday
} timeDayOfWeek_t;
typedef enum {
tmSecond, tmMinute, tmHour, tmWday, tmDay,tmMonth, tmYear, tmNbrFields
} tmByteFields;
typedef struct {
uint8_t Second;
uint8_t Minute;
uint8_t Hour;
uint8_t Wday; // day of week, sunday is day 1
uint8_t Day;
uint8_t Month;
uint8_t Year; // offset from 1970;
} tmElements_t, TimeElements, *tmElementsPtr_t;
//convenience macros to convert to and from tm years
#define tmYearToCalendar(Y) ((Y) + 1970) // full four digit year
#define CalendarYrToTm(Y) ((Y) - 1970)
#define tmYearToY2k(Y) ((Y) - 30) // offset is from 2000
#define y2kYearToTm(Y) ((Y) + 30)
typedef time_t(*getExternalTime)();
//typedef void (*setExternalTime)(const time_t); // not used in this version
/*==============================================================================*/
/* Useful Constants */
#define SECS_PER_MIN (60UL)
#define SECS_PER_HOUR (3600UL)
#define SECS_PER_DAY (SECS_PER_HOUR * 24UL)
#define DAYS_PER_WEEK (7UL)
#define SECS_PER_WEEK (SECS_PER_DAY * DAYS_PER_WEEK)
#define SECS_PER_YEAR (SECS_PER_WEEK * 52UL)
#define SECS_YR_2000 (946684800UL) // the time at the start of y2k
/* Useful Macros for getting elapsed time */
#define numberOfSeconds(_time_) (_time_ % SECS_PER_MIN)
#define numberOfMinutes(_time_) ((_time_ / SECS_PER_MIN) % SECS_PER_MIN)
#define numberOfHours(_time_) (( _time_% SECS_PER_DAY) / SECS_PER_HOUR)
#define dayOfWeek(_time_) ((( _time_ / SECS_PER_DAY + 4) % DAYS_PER_WEEK)+1) // 1 = Sunday
#define elapsedDays(_time_) ( _time_ / SECS_PER_DAY) // this is number of days since Jan 1 1970
#define elapsedSecsToday(_time_) (_time_ % SECS_PER_DAY) // the number of seconds since last midnight
// The following macros are used in calculating alarms and assume the clock is set to a date later than Jan 1 1971
// Always set the correct time before settting alarms
#define previousMidnight(_time_) (( _time_ / SECS_PER_DAY) * SECS_PER_DAY) // time at the start of the given day
#define nextMidnight(_time_) ( previousMidnight(_time_) + SECS_PER_DAY ) // time at the end of the given day
#define elapsedSecsThisWeek(_time_) (elapsedSecsToday(_time_) + ((dayOfWeek(_time_)-1) * SECS_PER_DAY) ) // note that week starts on day 1
#define previousSunday(_time_) (_time_ - elapsedSecsThisWeek(_time_)) // time at the start of the week for the given time
#define nextSunday(_time_) ( previousSunday(_time_)+SECS_PER_WEEK) // time at the end of the week for the given time
/* Useful Macros for converting elapsed time to a time_t */
#define minutesToTime_t ((M)) ( (M) * SECS_PER_MIN)
#define hoursToTime_t ((H)) ( (H) * SECS_PER_HOUR)
#define daysToTime_t ((D)) ( (D) * SECS_PER_DAY) // fixed on Jul 22 2011
#define weeksToTime_t ((W)) ( (W) * SECS_PER_WEEK)
/*============================================================================*/
/* time and date functions */
int hour(); // the hour now
int hour(time_t t); // the hour for the given time
int hourFormat12(); // the hour now in 12 hour format
int hourFormat12(time_t t); // the hour for the given time in 12 hour format
uint8_t isAM(); // returns true if time now is AM
uint8_t isAM(time_t t); // returns true the given time is AM
uint8_t isPM(); // returns true if time now is PM
uint8_t isPM(time_t t); // returns true the given time is PM
int minute(); // the minute now
int minute(time_t t); // the minute for the given time
int second(); // the second now
int second(time_t t); // the second for the given time
int day(); // the day now
int day(time_t t); // the day for the given time
int weekday(); // the weekday now (Sunday is day 1)
int weekday(time_t t); // the weekday for the given time
int month(); // the month now (Jan is month 1)
int month(time_t t); // the month for the given time
int year(); // the full four digit year: (2009, 2010 etc)
int year(time_t t); // the year for the given time
time_t now(); // return the current time as seconds since Jan 1 1970
void setTime(time_t t);
void setTime(int hr,int min,int sec,int day, int month, int yr);
void adjustTime(long adjustment);
/* date strings */
#define dt_MAX_STRING_LEN 9 // length of longest date string (excluding terminating null)
char* monthStr(uint8_t month);
char* dayStr(uint8_t day);
char* monthShortStr(uint8_t month);
char* dayShortStr(uint8_t day);
/* time sync functions */
timeStatus_t timeStatus(); // indicates if time has been set and recently synchronized
void setSyncProvider( getExternalTime getTimeFunction); // identify the external time provider
void setSyncInterval(time_t interval); // set the number of seconds between re-sync
/* low level functions to convert to and from system time */
void breakTime(time_t time, tmElements_t &tm); // break time_t into elements
time_t makeTime(tmElements_t &tm); // convert time elements into time_t
} // extern "C++"
#endif // __cplusplus
#endif /* _Time_h */

@ -0,0 +1,78 @@
/**
* SyncArduinoClock.
*
* portIndex must be set to the port connected to the Arduino
*
* The current time is sent in response to request message from Arduino
* or by clicking the display window
*
* The time message is 11 ASCII text characters; a header (the letter 'T')
* followed by the ten digit system time (unix time)
*/
import processing.serial.*;
import java.util.Date;
import java.util.Calendar;
import java.util.GregorianCalendar;
public static final short portIndex = 0; // select the com port, 0 is the first port
public static final String TIME_HEADER = "T"; //header for arduino serial time message
public static final char TIME_REQUEST = 7; // ASCII bell character
public static final char LF = 10; // ASCII linefeed
public static final char CR = 13; // ASCII linefeed
Serial myPort; // Create object from Serial class
void setup() {
size(200, 200);
println(Serial.list());
println(" Connecting to -> " + Serial.list()[portIndex]);
myPort = new Serial(this,Serial.list()[portIndex], 9600);
println(getTimeNow());
}
void draw()
{
textSize(20);
textAlign(CENTER);
fill(0);
text("Click to send\nTime Sync", 0, 75, 200, 175);
if ( myPort.available() > 0) { // If data is available,
char val = char(myPort.read()); // read it and store it in val
if(val == TIME_REQUEST){
long t = getTimeNow();
sendTimeMessage(TIME_HEADER, t);
}
else
{
if(val == LF)
; //igonore
else if(val == CR)
println();
else
print(val); // echo everying but time request
}
}
}
void mousePressed() {
sendTimeMessage( TIME_HEADER, getTimeNow());
}
void sendTimeMessage(String header, long time) {
String timeStr = String.valueOf(time);
myPort.write(header); // send header and time to arduino
myPort.write(timeStr);
myPort.write('\n');
}
long getTimeNow(){
// java time is in ms, we want secs
Date d = new Date();
Calendar cal = new GregorianCalendar();
long current = d.getTime()/1000;
long timezone = cal.get(cal.ZONE_OFFSET)/1000;
long daylight = cal.get(cal.DST_OFFSET)/1000;
return current + timezone + daylight;
}

@ -0,0 +1,9 @@
SyncArduinoClock is a Processing sketch that responds to Arduino requests for
time synchronization messages.
The portIndex must be set the Serial port connected to Arduino.
Download TimeSerial.pde onto Arduino and you should see the time
message displayed when you run SyncArduinoClock in Processing.
The Arduino time is set from the time on your computer through the
Processing sketch.

@ -0,0 +1,71 @@
/*
* TimeRTC.pde
* example code illustrating Time library with Real Time Clock.
*
* This example requires Markus Lange's Arduino Due RTC Library
* https://github.com/MarkusLange/Arduino-Due-RTC-Library
*/
#include <TimeLib.h>
#include <rtc_clock.h>
// Select the Slowclock source
//RTC_clock rtc_clock(RC);
RTC_clock rtc_clock(XTAL);
void setup() {
Serial.begin(9600);
rtc_clock.init();
if (rtc_clock.date_already_set() == 0) {
// Unfortunately, the Arduino Due hardware does not seem to
// be designed to maintain the RTC clock state when the
// board resets. Markus described it thusly: "Uhh the Due
// does reset with the NRSTB pin. This resets the full chip
// with all backup regions including RTC, RTT and SC. Only
// if the reset is done with the NRST pin will these regions
// stay with their old values."
rtc_clock.set_time(__TIME__);
rtc_clock.set_date(__DATE__);
// However, this might work on other unofficial SAM3X boards
// with different reset circuitry than Arduino Due?
}
setSyncProvider(getArduinoDueTime);
if(timeStatus()!= timeSet)
Serial.println("Unable to sync with the RTC");
else
Serial.println("RTC has set the system time");
}
time_t getArduinoDueTime()
{
return rtc_clock.unixtime();
}
void loop()
{
digitalClockDisplay();
delay(1000);
}
void digitalClockDisplay(){
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.print(" ");
Serial.print(day());
Serial.print(" ");
Serial.print(month());
Serial.print(" ");
Serial.print(year());
Serial.println();
}
void printDigits(int digits){
// utility function for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}

@ -0,0 +1,87 @@
/*
* TimeGPS.pde
* example code illustrating time synced from a GPS
*
*/
#include <TimeLib.h>
#include <TinyGPS.h> // http://arduiniana.org/libraries/TinyGPS/
#include <SoftwareSerial.h>
// TinyGPS and SoftwareSerial libraries are the work of Mikal Hart
SoftwareSerial SerialGPS = SoftwareSerial(10, 11); // receive on pin 10
TinyGPS gps;
// To use a hardware serial port, which is far more efficient than
// SoftwareSerial, uncomment this line and remove SoftwareSerial
//#define SerialGPS Serial1
// Offset hours from gps time (UTC)
const int offset = 1; // Central European Time
//const int offset = -5; // Eastern Standard Time (USA)
//const int offset = -4; // Eastern Daylight Time (USA)
//const int offset = -8; // Pacific Standard Time (USA)
//const int offset = -7; // Pacific Daylight Time (USA)
// Ideally, it should be possible to learn the time zone
// based on the GPS position data. However, that would
// require a complex library, probably incorporating some
// sort of database using Eric Muller's time zone shape
// maps, at http://efele.net/maps/tz/
time_t prevDisplay = 0; // when the digital clock was displayed
void setup()
{
Serial.begin(9600);
while (!Serial) ; // Needed for Leonardo only
SerialGPS.begin(4800);
Serial.println("Waiting for GPS time ... ");
}
void loop()
{
while (SerialGPS.available()) {
if (gps.encode(SerialGPS.read())) { // process gps messages
// when TinyGPS reports new data...
unsigned long age;
int Year;
byte Month, Day, Hour, Minute, Second;
gps.crack_datetime(&Year, &Month, &Day, &Hour, &Minute, &Second, NULL, &age);
if (age < 500) {
// set the Time to the latest GPS reading
setTime(Hour, Minute, Second, Day, Month, Year);
adjustTime(offset * SECS_PER_HOUR);
}
}
}
if (timeStatus()!= timeNotSet) {
if (now() != prevDisplay) { //update the display only if the time has changed
prevDisplay = now();
digitalClockDisplay();
}
}
}
void digitalClockDisplay(){
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.print(" ");
Serial.print(day());
Serial.print(" ");
Serial.print(month());
Serial.print(" ");
Serial.print(year());
Serial.println();
}
void printDigits(int digits) {
// utility function for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}

@ -0,0 +1,135 @@
/*
* Time_NTP.pde
* Example showing time sync to NTP time source
*
* This sketch uses the Ethernet library
*/
#include <TimeLib.h>
#include <Ethernet.h>
#include <EthernetUdp.h>
#include <SPI.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
// NTP Servers:
IPAddress timeServer(132, 163, 4, 101); // time-a.timefreq.bldrdoc.gov
// IPAddress timeServer(132, 163, 4, 102); // time-b.timefreq.bldrdoc.gov
// IPAddress timeServer(132, 163, 4, 103); // time-c.timefreq.bldrdoc.gov
const int timeZone = 1; // Central European Time
//const int timeZone = -5; // Eastern Standard Time (USA)
//const int timeZone = -4; // Eastern Daylight Time (USA)
//const int timeZone = -8; // Pacific Standard Time (USA)
//const int timeZone = -7; // Pacific Daylight Time (USA)
EthernetUDP Udp;
unsigned int localPort = 8888; // local port to listen for UDP packets
void setup()
{
Serial.begin(9600);
while (!Serial) ; // Needed for Leonardo only
delay(250);
Serial.println("TimeNTP Example");
if (Ethernet.begin(mac) == 0) {
// no point in carrying on, so do nothing forevermore:
while (1) {
Serial.println("Failed to configure Ethernet using DHCP");
delay(10000);
}
}
Serial.print("IP number assigned by DHCP is ");
Serial.println(Ethernet.localIP());
Udp.begin(localPort);
Serial.println("waiting for sync");
setSyncProvider(getNtpTime);
}
time_t prevDisplay = 0; // when the digital clock was displayed
void loop()
{
if (timeStatus() != timeNotSet) {
if (now() != prevDisplay) { //update the display only if time has changed
prevDisplay = now();
digitalClockDisplay();
}
}
}
void digitalClockDisplay(){
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.print(" ");
Serial.print(day());
Serial.print(" ");
Serial.print(month());
Serial.print(" ");
Serial.print(year());
Serial.println();
}
void printDigits(int digits){
// utility for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}
/*-------- NTP code ----------*/
const int NTP_PACKET_SIZE = 48; // NTP time is in the first 48 bytes of message
byte packetBuffer[NTP_PACKET_SIZE]; //buffer to hold incoming & outgoing packets
time_t getNtpTime()
{
while (Udp.parsePacket() > 0) ; // discard any previously received packets
Serial.println("Transmit NTP Request");
sendNTPpacket(timeServer);
uint32_t beginWait = millis();
while (millis() - beginWait < 1500) {
int size = Udp.parsePacket();
if (size >= NTP_PACKET_SIZE) {
Serial.println("Receive NTP Response");
Udp.read(packetBuffer, NTP_PACKET_SIZE); // read packet into the buffer
unsigned long secsSince1900;
// convert four bytes starting at location 40 to a long integer
secsSince1900 = (unsigned long)packetBuffer[40] << 24;
secsSince1900 |= (unsigned long)packetBuffer[41] << 16;
secsSince1900 |= (unsigned long)packetBuffer[42] << 8;
secsSince1900 |= (unsigned long)packetBuffer[43];
return secsSince1900 - 2208988800UL + timeZone * SECS_PER_HOUR;
}
}
Serial.println("No NTP Response :-(");
return 0; // return 0 if unable to get the time
}
// send an NTP request to the time server at the given address
void sendNTPpacket(IPAddress &address)
{
// set all bytes in the buffer to 0
memset(packetBuffer, 0, NTP_PACKET_SIZE);
// Initialize values needed to form NTP request
// (see URL above for details on the packets)
packetBuffer[0] = 0b11100011; // LI, Version, Mode
packetBuffer[1] = 0; // Stratum, or type of clock
packetBuffer[2] = 6; // Polling Interval
packetBuffer[3] = 0xEC; // Peer Clock Precision
// 8 bytes of zero for Root Delay & Root Dispersion
packetBuffer[12] = 49;
packetBuffer[13] = 0x4E;
packetBuffer[14] = 49;
packetBuffer[15] = 52;
// all NTP fields have been given values, now
// you can send a packet requesting a timestamp:
Udp.beginPacket(address, 123); //NTP requests are to port 123
Udp.write(packetBuffer, NTP_PACKET_SIZE);
Udp.endPacket();
}

@ -0,0 +1,143 @@
/*
* Time_NTP.pde
* Example showing time sync to NTP time source
*
* This sketch uses the ESP8266WiFi library
*/
#include <TimeLib.h>
#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
const char ssid[] = "*************"; // your network SSID (name)
const char pass[] = "********"; // your network password
// NTP Servers:
IPAddress timeServer(132, 163, 4, 101); // time-a.timefreq.bldrdoc.gov
// IPAddress timeServer(132, 163, 4, 102); // time-b.timefreq.bldrdoc.gov
// IPAddress timeServer(132, 163, 4, 103); // time-c.timefreq.bldrdoc.gov
const int timeZone = 1; // Central European Time
//const int timeZone = -5; // Eastern Standard Time (USA)
//const int timeZone = -4; // Eastern Daylight Time (USA)
//const int timeZone = -8; // Pacific Standard Time (USA)
//const int timeZone = -7; // Pacific Daylight Time (USA)
WiFiUDP Udp;
unsigned int localPort = 8888; // local port to listen for UDP packets
void setup()
{
Serial.begin(9600);
while (!Serial) ; // Needed for Leonardo only
delay(250);
Serial.println("TimeNTP Example");
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, pass);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.print("IP number assigned by DHCP is ");
Serial.println(WiFi.localIP());
Serial.println("Starting UDP");
Udp.begin(localPort);
Serial.print("Local port: ");
Serial.println(Udp.localPort());
Serial.println("waiting for sync");
setSyncProvider(getNtpTime);
}
time_t prevDisplay = 0; // when the digital clock was displayed
void loop()
{
if (timeStatus() != timeNotSet) {
if (now() != prevDisplay) { //update the display only if time has changed
prevDisplay = now();
digitalClockDisplay();
}
}
}
void digitalClockDisplay(){
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.print(" ");
Serial.print(day());
Serial.print(".");
Serial.print(month());
Serial.print(".");
Serial.print(year());
Serial.println();
}
void printDigits(int digits){
// utility for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}
/*-------- NTP code ----------*/
const int NTP_PACKET_SIZE = 48; // NTP time is in the first 48 bytes of message
byte packetBuffer[NTP_PACKET_SIZE]; //buffer to hold incoming & outgoing packets
time_t getNtpTime()
{
while (Udp.parsePacket() > 0) ; // discard any previously received packets
Serial.println("Transmit NTP Request");
sendNTPpacket(timeServer);
uint32_t beginWait = millis();
while (millis() - beginWait < 1500) {
int size = Udp.parsePacket();
if (size >= NTP_PACKET_SIZE) {
Serial.println("Receive NTP Response");
Udp.read(packetBuffer, NTP_PACKET_SIZE); // read packet into the buffer
unsigned long secsSince1900;
// convert four bytes starting at location 40 to a long integer
secsSince1900 = (unsigned long)packetBuffer[40] << 24;
secsSince1900 |= (unsigned long)packetBuffer[41] << 16;
secsSince1900 |= (unsigned long)packetBuffer[42] << 8;
secsSince1900 |= (unsigned long)packetBuffer[43];
return secsSince1900 - 2208988800UL + timeZone * SECS_PER_HOUR;
}
}
Serial.println("No NTP Response :-(");
return 0; // return 0 if unable to get the time
}
// send an NTP request to the time server at the given address
void sendNTPpacket(IPAddress &address)
{
// set all bytes in the buffer to 0
memset(packetBuffer, 0, NTP_PACKET_SIZE);
// Initialize values needed to form NTP request
// (see URL above for details on the packets)
packetBuffer[0] = 0b11100011; // LI, Version, Mode
packetBuffer[1] = 0; // Stratum, or type of clock
packetBuffer[2] = 6; // Polling Interval
packetBuffer[3] = 0xEC; // Peer Clock Precision
// 8 bytes of zero for Root Delay & Root Dispersion
packetBuffer[12] = 49;
packetBuffer[13] = 0x4E;
packetBuffer[14] = 49;
packetBuffer[15] = 52;
// all NTP fields have been given values, now
// you can send a packet requesting a timestamp:
Udp.beginPacket(address, 123); //NTP requests are to port 123
Udp.write(packetBuffer, NTP_PACKET_SIZE);
Udp.endPacket();
}

@ -0,0 +1,55 @@
/*
* TimeRTC.pde
* example code illustrating Time library with Real Time Clock.
*
*/
#include <TimeLib.h>
#include <Wire.h>
#include <DS1307RTC.h> // a basic DS1307 library that returns time as a time_t
void setup() {
Serial.begin(9600);
while (!Serial) ; // wait until Arduino Serial Monitor opens
setSyncProvider(RTC.get); // the function to get the time from the RTC
if(timeStatus()!= timeSet)
Serial.println("Unable to sync with the RTC");
else
Serial.println("RTC has set the system time");
}
void loop()
{
if (timeStatus() == timeSet) {
digitalClockDisplay();
} else {
Serial.println("The time has not been set. Please run the Time");
Serial.println("TimeRTCSet example, or DS1307RTC SetTime example.");
Serial.println();
delay(4000);
}
delay(1000);
}
void digitalClockDisplay(){
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.print(" ");
Serial.print(day());
Serial.print(" ");
Serial.print(month());
Serial.print(" ");
Serial.print(year());
Serial.println();
}
void printDigits(int digits){
// utility function for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}

@ -0,0 +1,107 @@
/*
* TimeRTCLogger.pde
* example code illustrating adding and subtracting Time.
*
* this sketch logs pin state change events
* the time of the event and time since the previous event is calculated and sent to the serial port.
*/
#include <TimeLib.h>
#include <Wire.h>
#include <DS1307RTC.h> // a basic DS1307 library that returns time as a time_t
const int nbrInputPins = 6; // monitor 6 digital pins
const int inputPins[nbrInputPins] = {2,3,4,5,6,7}; // pins to monitor
boolean state[nbrInputPins] ; // the state of the monitored pins
time_t prevEventTime[nbrInputPins] ; // the time of the previous event
void setup() {
Serial.begin(9600);
setSyncProvider(RTC.get); // the function to sync the time from the RTC
for(int i=0; i < nbrInputPins; i++){
pinMode( inputPins[i], INPUT);
// uncomment these lines if pull-up resistors are wanted
// pinMode( inputPins[i], INPUT_PULLUP);
// state[i] = HIGH;
}
}
void loop()
{
for(int i=0; i < nbrInputPins; i++)
{
boolean val = digitalRead(inputPins[i]);
if(val != state[i])
{
time_t duration = 0; // the time since the previous event
state[i] = val;
time_t timeNow = now();
if(prevEventTime[i] > 0)
// if this was not the first state change, calculate the time from the previous change
duration = duration = timeNow - prevEventTime[i];
logEvent(inputPins[i], val, timeNow, duration ); // log the event
prevEventTime[i] = timeNow; // store the time for this event
}
}
}
void logEvent( int pin, boolean state, time_t timeNow, time_t duration)
{
Serial.print("Pin ");
Serial.print(pin);
if( state == HIGH)
Serial.print(" went High at ");
else
Serial.print(" went Low at ");
showTime(timeNow);
if(duration > 0){
// only display duration if greater than 0
Serial.print(", Duration was ");
showDuration(duration);
}
Serial.println();
}
void showTime(time_t t){
// display the given time
Serial.print(hour(t));
printDigits(minute(t));
printDigits(second(t));
Serial.print(" ");
Serial.print(day(t));
Serial.print(" ");
Serial.print(month(t));
Serial.print(" ");
Serial.print(year(t));
}
void printDigits(int digits){
// utility function for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}
void showDuration(time_t duration){
// prints the duration in days, hours, minutes and seconds
if(duration >= SECS_PER_DAY){
Serial.print(duration / SECS_PER_DAY);
Serial.print(" day(s) ");
duration = duration % SECS_PER_DAY;
}
if(duration >= SECS_PER_HOUR){
Serial.print(duration / SECS_PER_HOUR);
Serial.print(" hour(s) ");
duration = duration % SECS_PER_HOUR;
}
if(duration >= SECS_PER_MIN){
Serial.print(duration / SECS_PER_MIN);
Serial.print(" minute(s) ");
duration = duration % SECS_PER_MIN;
}
Serial.print(duration);
Serial.print(" second(s) ");
}

@ -0,0 +1,80 @@
/*
* TimeRTCSet.pde
* example code illustrating Time library with Real Time Clock.
*
* RTC clock is set in response to serial port time message
* A Processing example sketch to set the time is included in the download
* On Linux, you can use "date +T%s > /dev/ttyACM0" (UTC time zone)
*/
#include <TimeLib.h>
#include <Wire.h>
#include <DS1307RTC.h> // a basic DS1307 library that returns time as a time_t
void setup() {
Serial.begin(9600);
while (!Serial) ; // Needed for Leonardo only
setSyncProvider(RTC.get); // the function to get the time from the RTC
if (timeStatus() != timeSet)
Serial.println("Unable to sync with the RTC");
else
Serial.println("RTC has set the system time");
}
void loop()
{
if (Serial.available()) {
time_t t = processSyncMessage();
if (t != 0) {
RTC.set(t); // set the RTC and the system time to the received value
setTime(t);
}
}
digitalClockDisplay();
delay(1000);
}
void digitalClockDisplay(){
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.print(" ");
Serial.print(day());
Serial.print(" ");
Serial.print(month());
Serial.print(" ");
Serial.print(year());
Serial.println();
}
void printDigits(int digits){
// utility function for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}
/* code to process time sync messages from the serial port */
#define TIME_HEADER "T" // Header tag for serial time sync message
unsigned long processSyncMessage() {
unsigned long pctime = 0L;
const unsigned long DEFAULT_TIME = 1357041600; // Jan 1 2013
if(Serial.find(TIME_HEADER)) {
pctime = Serial.parseInt();
return pctime;
if( pctime < DEFAULT_TIME) { // check the value is a valid time (greater than Jan 1 2013)
pctime = 0L; // return 0 to indicate that the time is not valid
}
}
return pctime;
}

@ -0,0 +1,81 @@
/*
* TimeSerial.pde
* example code illustrating Time library set through serial port messages.
*
* Messages consist of the letter T followed by ten digit time (as seconds since Jan 1 1970)
* you can send the text on the next line using Serial Monitor to set the clock to noon Jan 1 2013
T1357041600
*
* A Processing example sketch to automatically send the messages is included in the download
* On Linux, you can use "date +T%s\n > /dev/ttyACM0" (UTC time zone)
*/
#include <TimeLib.h>
#define TIME_HEADER "T" // Header tag for serial time sync message
#define TIME_REQUEST 7 // ASCII bell character requests a time sync message
void setup() {
Serial.begin(9600);
while (!Serial) ; // Needed for Leonardo only
pinMode(13, OUTPUT);
setSyncProvider( requestSync); //set function to call when sync required
Serial.println("Waiting for sync message");
}
void loop(){
if (Serial.available()) {
processSyncMessage();
}
if (timeStatus()!= timeNotSet) {
digitalClockDisplay();
}
if (timeStatus() == timeSet) {
digitalWrite(13, HIGH); // LED on if synced
} else {
digitalWrite(13, LOW); // LED off if needs refresh
}
delay(1000);
}
void digitalClockDisplay(){
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.print(" ");
Serial.print(day());
Serial.print(" ");
Serial.print(month());
Serial.print(" ");
Serial.print(year());
Serial.println();
}
void printDigits(int digits){
// utility function for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}
void processSyncMessage() {
unsigned long pctime;
const unsigned long DEFAULT_TIME = 1357041600; // Jan 1 2013
if(Serial.find(TIME_HEADER)) {
pctime = Serial.parseInt();
if( pctime >= DEFAULT_TIME) { // check the integer is a valid time (greater than Jan 1 2013)
setTime(pctime); // Sync Arduino clock to the time received on the serial port
}
}
}
time_t requestSync()
{
Serial.write(TIME_REQUEST);
return 0; // the time will be sent later in response to serial mesg
}

@ -0,0 +1,108 @@
/*
* TimeSerialDateStrings.pde
* example code illustrating Time library date strings
*
* This sketch adds date string functionality to TimeSerial sketch
* Also shows how to handle different messages
*
* A message starting with a time header sets the time
* A Processing example sketch to automatically send the messages is inclided in the download
* On Linux, you can use "date +T%s\n > /dev/ttyACM0" (UTC time zone)
*
* A message starting with a format header sets the date format
* send: Fs\n for short date format
* send: Fl\n for long date format
*/
#include <TimeLib.h>
// single character message tags
#define TIME_HEADER 'T' // Header tag for serial time sync message
#define FORMAT_HEADER 'F' // Header tag indicating a date format message
#define FORMAT_SHORT 's' // short month and day strings
#define FORMAT_LONG 'l' // (lower case l) long month and day strings
#define TIME_REQUEST 7 // ASCII bell character requests a time sync message
static boolean isLongFormat = true;
void setup() {
Serial.begin(9600);
while (!Serial) ; // Needed for Leonardo only
setSyncProvider( requestSync); //set function to call when sync required
Serial.println("Waiting for sync message");
}
void loop(){
if (Serial.available() > 1) { // wait for at least two characters
char c = Serial.read();
if( c == TIME_HEADER) {
processSyncMessage();
}
else if( c== FORMAT_HEADER) {
processFormatMessage();
}
}
if (timeStatus()!= timeNotSet) {
digitalClockDisplay();
}
delay(1000);
}
void digitalClockDisplay() {
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.print(" ");
if(isLongFormat)
Serial.print(dayStr(weekday()));
else
Serial.print(dayShortStr(weekday()));
Serial.print(" ");
Serial.print(day());
Serial.print(" ");
if(isLongFormat)
Serial.print(monthStr(month()));
else
Serial.print(monthShortStr(month()));
Serial.print(" ");
Serial.print(year());
Serial.println();
}
void printDigits(int digits) {
// utility function for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}
void processFormatMessage() {
char c = Serial.read();
if( c == FORMAT_LONG){
isLongFormat = true;
Serial.println(F("Setting long format"));
}
else if( c == FORMAT_SHORT) {
isLongFormat = false;
Serial.println(F("Setting short format"));
}
}
void processSyncMessage() {
unsigned long pctime;
const unsigned long DEFAULT_TIME = 1357041600; // Jan 1 2013 - paul, perhaps we define in time.h?
pctime = Serial.parseInt();
if( pctime >= DEFAULT_TIME) { // check the integer is a valid time (greater than Jan 1 2013)
setTime(pctime); // Sync Arduino clock to the time received on the serial port
}
}
time_t requestSync() {
Serial.write(TIME_REQUEST);
return 0; // the time will be sent later in response to serial mesg
}

@ -0,0 +1,78 @@
/*
* TimeRTC.pde
* example code illustrating Time library with Real Time Clock.
*
*/
#include <TimeLib.h>
void setup() {
// set the Time library to use Teensy 3.0's RTC to keep time
setSyncProvider(getTeensy3Time);
Serial.begin(115200);
while (!Serial); // Wait for Arduino Serial Monitor to open
delay(100);
if (timeStatus()!= timeSet) {
Serial.println("Unable to sync with the RTC");
} else {
Serial.println("RTC has set the system time");
}
}
void loop() {
if (Serial.available()) {
time_t t = processSyncMessage();
if (t != 0) {
Teensy3Clock.set(t); // set the RTC
setTime(t);
}
}
digitalClockDisplay();
delay(1000);
}
void digitalClockDisplay() {
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.print(" ");
Serial.print(day());
Serial.print(" ");
Serial.print(month());
Serial.print(" ");
Serial.print(year());
Serial.println();
}
time_t getTeensy3Time()
{
return Teensy3Clock.get();
}
/* code to process time sync messages from the serial port */
#define TIME_HEADER "T" // Header tag for serial time sync message
unsigned long processSyncMessage() {
unsigned long pctime = 0L;
const unsigned long DEFAULT_TIME = 1357041600; // Jan 1 2013
if(Serial.find(TIME_HEADER)) {
pctime = Serial.parseInt();
return pctime;
if( pctime < DEFAULT_TIME) { // check the value is a valid time (greater than Jan 1 2013)
pctime = 0L; // return 0 to indicate that the time is not valid
}
}
return pctime;
}
void printDigits(int digits){
// utility function for digital clock display: prints preceding colon and leading 0
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}

@ -0,0 +1,34 @@
#######################################
# Syntax Coloring Map For Time
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
time_t KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
now KEYWORD2
second KEYWORD2
minute KEYWORD2
hour KEYWORD2
day KEYWORD2
month KEYWORD2
year KEYWORD2
isAM KEYWORD2
isPM KEYWORD2
weekday KEYWORD2
setTime KEYWORD2
adjustTime KEYWORD2
setSyncProvider KEYWORD2
setSyncInterval KEYWORD2
timeStatus KEYWORD2
TimeLib KEYWORD2
#######################################
# Instances (KEYWORD2)
#######################################
#######################################
# Constants (LITERAL1)
#######################################

@ -0,0 +1,22 @@
{
"name": "Time",
"frameworks": "Arduino",
"keywords": "Time, date, hour, minute, second, day, week, month, year, RTC",
"description": "Time keeping library",
"url": "http://playground.arduino.cc/Code/Time",
"authors":
[
{
"name": "Michael Margolis"
},
{
"name": "Paul Stoffregen"
}
],
"repository":
{
"type": "git",
"url": "https://github.com/PaulStoffregen/Time"
}
}

@ -0,0 +1,10 @@
name=Time
version=1.5
author=Michael Margolis
maintainer=Paul Stoffregen
sentence=Timekeeping functionality for Arduino
paragraph=Date and Time functions, with provisions to synchronize to external time sources like GPS and NTP (Internet). This library is often used together with TimeAlarms and DS1307RTC.
category=Timing
url=http://playground.arduino.cc/code/time
architectures=*

@ -0,0 +1,501 @@
/*
TinyGPS++ - a small GPS library for Arduino providing universal NMEA parsing
Based on work by and "distanceBetween" and "courseTo" courtesy of Maarten Lamers.
Suggestion to add satellites, courseTo(), and cardinal() by Matt Monson.
Location precision improvements suggested by Wayne Holder.
Copyright (C) 2008-2013 Mikal Hart
All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "TinyGPS++.h"
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#define _GPRMCterm "GPRMC"
#define _GPGGAterm "GPGGA"
TinyGPSPlus::TinyGPSPlus()
: parity(0)
, isChecksumTerm(false)
, curSentenceType(GPS_SENTENCE_OTHER)
, curTermNumber(0)
, curTermOffset(0)
, sentenceHasFix(false)
, customElts(0)
, customCandidates(0)
, encodedCharCount(0)
, sentencesWithFixCount(0)
, failedChecksumCount(0)
, passedChecksumCount(0)
{
term[0] = '\0';
}
//
// public methods
//
bool TinyGPSPlus::encode(char c)
{
++encodedCharCount;
switch(c)
{
case ',': // term terminators
parity ^= (uint8_t)c;
case '\r':
case '\n':
case '*':
{
bool isValidSentence = false;
if (curTermOffset < sizeof(term))
{
term[curTermOffset] = 0;
isValidSentence = endOfTermHandler();
}
++curTermNumber;
curTermOffset = 0;
isChecksumTerm = c == '*';
return isValidSentence;
}
break;
case '$': // sentence begin
curTermNumber = curTermOffset = 0;
parity = 0;
curSentenceType = GPS_SENTENCE_OTHER;
isChecksumTerm = false;
sentenceHasFix = false;
return false;
default: // ordinary characters
if (curTermOffset < sizeof(term) - 1)
term[curTermOffset++] = c;
if (!isChecksumTerm)
parity ^= c;
return false;
}
return false;
}
//
// internal utilities
//
int TinyGPSPlus::fromHex(char a)
{
if (a >= 'A' && a <= 'F')
return a - 'A' + 10;
else if (a >= 'a' && a <= 'f')
return a - 'a' + 10;
else
return a - '0';
}
// static
// Parse a (potentially negative) number with up to 2 decimal digits -xxxx.yy
int32_t TinyGPSPlus::parseDecimal(const char *term)
{
bool negative = *term == '-';
if (negative) ++term;
int32_t ret = 100 * (int32_t)atol(term);
while (isdigit(*term)) ++term;
if (*term == '.' && isdigit(term[1]))
{
ret += 10 * (term[1] - '0');
if (isdigit(term[2]))
ret += term[2] - '0';
}
return negative ? -ret : ret;
}
// static
// Parse degrees in that funny NMEA format DDMM.MMMM
void TinyGPSPlus::parseDegrees(const char *term, RawDegrees &deg)
{
uint32_t leftOfDecimal = (uint32_t)atol(term);
uint16_t minutes = (uint16_t)(leftOfDecimal % 100);
uint32_t multiplier = 10000000UL;
uint32_t tenMillionthsOfMinutes = minutes * multiplier;
deg.deg = (int16_t)(leftOfDecimal / 100);
while (isdigit(*term))
++term;
if (*term == '.')
while (isdigit(*++term))
{
multiplier /= 10;
tenMillionthsOfMinutes += (*term - '0') * multiplier;
}
deg.billionths = (5 * tenMillionthsOfMinutes + 1) / 3;
deg.negative = false;
}
#define COMBINE(sentence_type, term_number) (((unsigned)(sentence_type) << 5) | term_number)
// Processes a just-completed term
// Returns true if new sentence has just passed checksum test and is validated
bool TinyGPSPlus::endOfTermHandler()
{
// If it's the checksum term, and the checksum checks out, commit
if (isChecksumTerm)
{
byte checksum = 16 * fromHex(term[0]) + fromHex(term[1]);
if (checksum == parity)
{
passedChecksumCount++;
if (sentenceHasFix)
++sentencesWithFixCount;
switch(curSentenceType)
{
case GPS_SENTENCE_GPRMC:
date.commit();
time.commit();
if (sentenceHasFix)
{
location.commit();
speed.commit();
course.commit();
}
break;
case GPS_SENTENCE_GPGGA:
time.commit();
if (sentenceHasFix)
{
location.commit();
altitude.commit();
}
satellites.commit();
hdop.commit();
break;
}
// Commit all custom listeners of this sentence type
for (TinyGPSCustom *p = customCandidates; p != NULL && strcmp(p->sentenceName, customCandidates->sentenceName) == 0; p = p->next)
p->commit();
return true;
}
else
{
++failedChecksumCount;
}
return false;
}
// the first term determines the sentence type
if (curTermNumber == 0)
{
if (!strcmp(term, _GPRMCterm))
curSentenceType = GPS_SENTENCE_GPRMC;
else if (!strcmp(term, _GPGGAterm))
curSentenceType = GPS_SENTENCE_GPGGA;
else
curSentenceType = GPS_SENTENCE_OTHER;
// Any custom candidates of this sentence type?
for (customCandidates = customElts; customCandidates != NULL && strcmp(customCandidates->sentenceName, term) < 0; customCandidates = customCandidates->next);
if (customCandidates != NULL && strcmp(customCandidates->sentenceName, term) > 0)
customCandidates = NULL;
return false;
}
if (curSentenceType != GPS_SENTENCE_OTHER && term[0])
switch(COMBINE(curSentenceType, curTermNumber))
{
case COMBINE(GPS_SENTENCE_GPRMC, 1): // Time in both sentences
case COMBINE(GPS_SENTENCE_GPGGA, 1):
time.setTime(term);
break;
case COMBINE(GPS_SENTENCE_GPRMC, 2): // GPRMC validity
sentenceHasFix = term[0] == 'A';
break;
case COMBINE(GPS_SENTENCE_GPRMC, 3): // Latitude
case COMBINE(GPS_SENTENCE_GPGGA, 2):
location.setLatitude(term);
break;
case COMBINE(GPS_SENTENCE_GPRMC, 4): // N/S
case COMBINE(GPS_SENTENCE_GPGGA, 3):
location.rawNewLatData.negative = term[0] == 'S';
break;
case COMBINE(GPS_SENTENCE_GPRMC, 5): // Longitude
case COMBINE(GPS_SENTENCE_GPGGA, 4):
location.setLongitude(term);
break;
case COMBINE(GPS_SENTENCE_GPRMC, 6): // E/W
case COMBINE(GPS_SENTENCE_GPGGA, 5):
location.rawNewLngData.negative = term[0] == 'W';
break;
case COMBINE(GPS_SENTENCE_GPRMC, 7): // Speed (GPRMC)
speed.set(term);
break;
case COMBINE(GPS_SENTENCE_GPRMC, 8): // Course (GPRMC)
course.set(term);
break;
case COMBINE(GPS_SENTENCE_GPRMC, 9): // Date (GPRMC)
date.setDate(term);
break;
case COMBINE(GPS_SENTENCE_GPGGA, 6): // Fix data (GPGGA)
sentenceHasFix = term[0] > '0';
break;
case COMBINE(GPS_SENTENCE_GPGGA, 7): // Satellites used (GPGGA)
satellites.set(term);
break;
case COMBINE(GPS_SENTENCE_GPGGA, 8): // HDOP
hdop.set(term);
break;
case COMBINE(GPS_SENTENCE_GPGGA, 9): // Altitude (GPGGA)
altitude.set(term);
break;
}
// Set custom values as needed
for (TinyGPSCustom *p = customCandidates; p != NULL && strcmp(p->sentenceName, customCandidates->sentenceName) == 0 && p->termNumber <= curTermNumber; p = p->next)
if (p->termNumber == curTermNumber)
p->set(term);
return false;
}
/* static */
double TinyGPSPlus::distanceBetween(double lat1, double long1, double lat2, double long2)
{
// returns distance in meters between two positions, both specified
// as signed decimal-degrees latitude and longitude. Uses great-circle
// distance computation for hypothetical sphere of radius 6372795 meters.
// Because Earth is no exact sphere, rounding errors may be up to 0.5%.
// Courtesy of Maarten Lamers
double delta = radians(long1-long2);
double sdlong = sin(delta);
double cdlong = cos(delta);
lat1 = radians(lat1);
lat2 = radians(lat2);
double slat1 = sin(lat1);
double clat1 = cos(lat1);
double slat2 = sin(lat2);
double clat2 = cos(lat2);
delta = (clat1 * slat2) - (slat1 * clat2 * cdlong);
delta = sq(delta);
delta += sq(clat2 * sdlong);
delta = sqrt(delta);
double denom = (slat1 * slat2) + (clat1 * clat2 * cdlong);
delta = atan2(delta, denom);
return delta * 6372795;
}
double TinyGPSPlus::courseTo(double lat1, double long1, double lat2, double long2)
{
// returns course in degrees (North=0, West=270) from position 1 to position 2,
// both specified as signed decimal-degrees latitude and longitude.
// Because Earth is no exact sphere, calculated course may be off by a tiny fraction.
// Courtesy of Maarten Lamers
double dlon = radians(long2-long1);
lat1 = radians(lat1);
lat2 = radians(lat2);
double a1 = sin(dlon) * cos(lat2);
double a2 = sin(lat1) * cos(lat2) * cos(dlon);
a2 = cos(lat1) * sin(lat2) - a2;
a2 = atan2(a1, a2);
if (a2 < 0.0)
{
a2 += TWO_PI;
}
return degrees(a2);
}
const char *TinyGPSPlus::cardinal(double course)
{
static const char* directions[] = {"N", "NNE", "NE", "ENE", "E", "ESE", "SE", "SSE", "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW"};
int direction = (int)((course + 11.25f) / 22.5f);
return directions[direction % 16];
}
void TinyGPSLocation::commit()
{
rawLatData = rawNewLatData;
rawLngData = rawNewLngData;
lastCommitTime = millis();
valid = updated = true;
}
void TinyGPSLocation::setLatitude(const char *term)
{
TinyGPSPlus::parseDegrees(term, rawNewLatData);
}
void TinyGPSLocation::setLongitude(const char *term)
{
TinyGPSPlus::parseDegrees(term, rawNewLngData);
}
double TinyGPSLocation::lat()
{
updated = false;
double ret = rawLatData.deg + rawLatData.billionths / 1000000000.0;
return rawLatData.negative ? -ret : ret;
}
double TinyGPSLocation::lng()
{
updated = false;
double ret = rawLngData.deg + rawLngData.billionths / 1000000000.0;
return rawLngData.negative ? -ret : ret;
}
void TinyGPSDate::commit()
{
date = newDate;
lastCommitTime = millis();
valid = updated = true;
}
void TinyGPSTime::commit()
{
time = newTime;
lastCommitTime = millis();
valid = updated = true;
}
void TinyGPSTime::setTime(const char *term)
{
newTime = (uint32_t)TinyGPSPlus::parseDecimal(term);
}
void TinyGPSDate::setDate(const char *term)
{
newDate = atol(term);
}
uint16_t TinyGPSDate::year()
{
updated = false;
uint16_t year = date % 100;
return year + 2000;
}
uint8_t TinyGPSDate::month()
{
updated = false;
return (date / 100) % 100;
}
uint8_t TinyGPSDate::day()
{
updated = false;
return date / 10000;
}
uint8_t TinyGPSTime::hour()
{
updated = false;
return time / 1000000;
}
uint8_t TinyGPSTime::minute()
{
updated = false;
return (time / 10000) % 100;
}
uint8_t TinyGPSTime::second()
{
updated = false;
return (time / 100) % 100;
}
uint8_t TinyGPSTime::centisecond()
{
updated = false;
return time % 100;
}
void TinyGPSDecimal::commit()
{
val = newval;
lastCommitTime = millis();
valid = updated = true;
}
void TinyGPSDecimal::set(const char *term)
{
newval = TinyGPSPlus::parseDecimal(term);
}
void TinyGPSInteger::commit()
{
val = newval;
lastCommitTime = millis();
valid = updated = true;
}
void TinyGPSInteger::set(const char *term)
{
newval = atol(term);
}
TinyGPSCustom::TinyGPSCustom(TinyGPSPlus &gps, const char *_sentenceName, int _termNumber)
{
begin(gps, _sentenceName, _termNumber);
}
void TinyGPSCustom::begin(TinyGPSPlus &gps, const char *_sentenceName, int _termNumber)
{
lastCommitTime = 0;
updated = valid = false;
sentenceName = _sentenceName;
termNumber = _termNumber;
memset(stagingBuffer, '\0', sizeof(stagingBuffer));
memset(buffer, '\0', sizeof(buffer));
// Insert this item into the GPS tree
gps.insertCustom(this, _sentenceName, _termNumber);
}
void TinyGPSCustom::commit()
{
strcpy(this->buffer, this->stagingBuffer);
lastCommitTime = millis();
valid = updated = true;
}
void TinyGPSCustom::set(const char *term)
{
strncpy(this->stagingBuffer, term, sizeof(this->stagingBuffer));
}
void TinyGPSPlus::insertCustom(TinyGPSCustom *pElt, const char *sentenceName, int termNumber)
{
TinyGPSCustom **ppelt;
for (ppelt = &this->customElts; *ppelt != NULL; ppelt = &(*ppelt)->next)
{
int cmp = strcmp(sentenceName, (*ppelt)->sentenceName);
if (cmp < 0 || (cmp == 0 && termNumber < (*ppelt)->termNumber))
break;
}
pElt->next = *ppelt;
*ppelt = pElt;
}

@ -0,0 +1,273 @@
/*
TinyGPS++ - a small GPS library for Arduino providing universal NMEA parsing
Based on work by and "distanceBetween" and "courseTo" courtesy of Maarten Lamers.
Suggestion to add satellites, courseTo(), and cardinal() by Matt Monson.
Location precision improvements suggested by Wayne Holder.
Copyright (C) 2008-2013 Mikal Hart
All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __TinyGPSPlus_h
#define __TinyGPSPlus_h
#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif
#include <limits.h>
#define _GPS_VERSION "0.92" // software version of this library
#define _GPS_MPH_PER_KNOT 1.15077945
#define _GPS_MPS_PER_KNOT 0.51444444
#define _GPS_KMPH_PER_KNOT 1.852
#define _GPS_MILES_PER_METER 0.00062137112
#define _GPS_KM_PER_METER 0.001
#define _GPS_FEET_PER_METER 3.2808399
#define _GPS_MAX_FIELD_SIZE 15
struct RawDegrees
{
uint16_t deg;
uint32_t billionths;
bool negative;
public:
RawDegrees() : deg(0), billionths(0), negative(false)
{}
};
struct TinyGPSLocation
{
friend class TinyGPSPlus;
public:
bool isValid() const { return valid; }
bool isUpdated() const { return updated; }
uint32_t age() const { return valid ? millis() - lastCommitTime : (uint32_t)ULONG_MAX; }
const RawDegrees &rawLat() { updated = false; return rawLatData; }
const RawDegrees &rawLng() { updated = false; return rawLngData; }
double lat();
double lng();
TinyGPSLocation() : valid(false), updated(false)
{}
private:
bool valid, updated;
RawDegrees rawLatData, rawLngData, rawNewLatData, rawNewLngData;
uint32_t lastCommitTime;
void commit();
void setLatitude(const char *term);
void setLongitude(const char *term);
};
struct TinyGPSDate
{
friend class TinyGPSPlus;
public:
bool isValid() const { return valid; }
bool isUpdated() const { return updated; }
uint32_t age() const { return valid ? millis() - lastCommitTime : (uint32_t)ULONG_MAX; }
uint32_t value() { updated = false; return date; }
uint16_t year();
uint8_t month();
uint8_t day();
TinyGPSDate() : valid(false), updated(false), date(0)
{}
private:
bool valid, updated;
uint32_t date, newDate;
uint32_t lastCommitTime;
void commit();
void setDate(const char *term);
};
struct TinyGPSTime
{
friend class TinyGPSPlus;
public:
bool isValid() const { return valid; }
bool isUpdated() const { return updated; }
uint32_t age() const { return valid ? millis() - lastCommitTime : (uint32_t)ULONG_MAX; }
uint32_t value() { updated = false; return time; }
uint8_t hour();
uint8_t minute();
uint8_t second();
uint8_t centisecond();
TinyGPSTime() : valid(false), updated(false), time(0)
{}
private:
bool valid, updated;
uint32_t time, newTime;
uint32_t lastCommitTime;
void commit();
void setTime(const char *term);
};
struct TinyGPSDecimal
{
friend class TinyGPSPlus;
public:
bool isValid() const { return valid; }
bool isUpdated() const { return updated; }
uint32_t age() const { return valid ? millis() - lastCommitTime : (uint32_t)ULONG_MAX; }
int32_t value() { updated = false; return val; }
TinyGPSDecimal() : valid(false), updated(false), val(0)
{}
private:
bool valid, updated;
uint32_t lastCommitTime;
int32_t val, newval;
void commit();
void set(const char *term);
};
struct TinyGPSInteger
{
friend class TinyGPSPlus;
public:
bool isValid() const { return valid; }
bool isUpdated() const { return updated; }
uint32_t age() const { return valid ? millis() - lastCommitTime : (uint32_t)ULONG_MAX; }
uint32_t value() { updated = false; return val; }
TinyGPSInteger() : valid(false), updated(false), val(0)
{}
private:
bool valid, updated;
uint32_t lastCommitTime;
uint32_t val, newval;
void commit();
void set(const char *term);
};
struct TinyGPSSpeed : TinyGPSDecimal
{
double knots() { return value() / 100.0; }
double mph() { return _GPS_MPH_PER_KNOT * value() / 100.0; }
double mps() { return _GPS_MPS_PER_KNOT * value() / 100.0; }
double kmph() { return _GPS_KMPH_PER_KNOT * value() / 100.0; }
};
struct TinyGPSCourse : public TinyGPSDecimal
{
double deg() { return value() / 100.0; }
};
struct TinyGPSAltitude : TinyGPSDecimal
{
double meters() { return value() / 100.0; }
double miles() { return _GPS_MILES_PER_METER * value() / 100.0; }
double kilometers() { return _GPS_KM_PER_METER * value() / 100.0; }
double feet() { return _GPS_FEET_PER_METER * value() / 100.0; }
};
class TinyGPSPlus;
class TinyGPSCustom
{
public:
TinyGPSCustom() {};
TinyGPSCustom(TinyGPSPlus &gps, const char *sentenceName, int termNumber);
void begin(TinyGPSPlus &gps, const char *_sentenceName, int _termNumber);
bool isUpdated() const { return updated; }
bool isValid() const { return valid; }
uint32_t age() const { return valid ? millis() - lastCommitTime : (uint32_t)ULONG_MAX; }
const char *value() { updated = false; return buffer; }
private:
void commit();
void set(const char *term);
char stagingBuffer[_GPS_MAX_FIELD_SIZE + 1];
char buffer[_GPS_MAX_FIELD_SIZE + 1];
unsigned long lastCommitTime;
bool valid, updated;
const char *sentenceName;
int termNumber;
friend class TinyGPSPlus;
TinyGPSCustom *next;
};
class TinyGPSPlus
{
public:
TinyGPSPlus();
bool encode(char c); // process one character received from GPS
TinyGPSPlus &operator << (char c) {encode(c); return *this;}
TinyGPSLocation location;
TinyGPSDate date;
TinyGPSTime time;
TinyGPSSpeed speed;
TinyGPSCourse course;
TinyGPSAltitude altitude;
TinyGPSInteger satellites;
TinyGPSDecimal hdop;
static const char *libraryVersion() { return _GPS_VERSION; }
static double distanceBetween(double lat1, double long1, double lat2, double long2);
static double courseTo(double lat1, double long1, double lat2, double long2);
static const char *cardinal(double course);
static int32_t parseDecimal(const char *term);
static void parseDegrees(const char *term, RawDegrees &deg);
uint32_t charsProcessed() const { return encodedCharCount; }
uint32_t sentencesWithFix() const { return sentencesWithFixCount; }
uint32_t failedChecksum() const { return failedChecksumCount; }
uint32_t passedChecksum() const { return passedChecksumCount; }
private:
enum {GPS_SENTENCE_GPGGA, GPS_SENTENCE_GPRMC, GPS_SENTENCE_OTHER};
// parsing state variables
uint8_t parity;
bool isChecksumTerm;
char term[_GPS_MAX_FIELD_SIZE];
uint8_t curSentenceType;
uint8_t curTermNumber;
uint8_t curTermOffset;
bool sentenceHasFix;
// custom element support
friend class TinyGPSCustom;
TinyGPSCustom *customElts;
TinyGPSCustom *customCandidates;
void insertCustom(TinyGPSCustom *pElt, const char *sentenceName, int index);
// statistics
uint32_t encodedCharCount;
uint32_t sentencesWithFixCount;
uint32_t failedChecksumCount;
uint32_t passedChecksumCount;
// internal utilities
int fromHex(char a);
bool endOfTermHandler();
};
#endif // def(__TinyGPSPlus_h)

@ -0,0 +1,91 @@
#include <TinyGPS++.h>
/*
This sample sketch should be the first you try out when you are testing a TinyGPS++
(TinyGPSPlus) installation. In normal use, you feed TinyGPS++ objects characters from
a serial NMEA GPS device, but this example uses static strings for simplicity.
*/
// A sample NMEA stream.
const char *gpsStream =
"$GPRMC,045103.000,A,3014.1984,N,09749.2872,W,0.67,161.46,030913,,,A*7C\r\n"
"$GPGGA,045104.000,3014.1985,N,09749.2873,W,1,09,1.2,211.6,M,-22.5,M,,0000*62\r\n"
"$GPRMC,045200.000,A,3014.3820,N,09748.9514,W,36.88,65.02,030913,,,A*77\r\n"
"$GPGGA,045201.000,3014.3864,N,09748.9411,W,1,10,1.2,200.8,M,-22.5,M,,0000*6C\r\n"
"$GPRMC,045251.000,A,3014.4275,N,09749.0626,W,0.51,217.94,030913,,,A*7D\r\n"
"$GPGGA,045252.000,3014.4273,N,09749.0628,W,1,09,1.3,206.9,M,-22.5,M,,0000*6F\r\n";
// The TinyGPS++ object
TinyGPSPlus gps;
void setup()
{
Serial.begin(115200);
Serial.println(F("BasicExample.ino"));
Serial.println(F("Basic demonstration of TinyGPS++ (no device needed)"));
Serial.print(F("Testing TinyGPS++ library v. ")); Serial.println(TinyGPSPlus::libraryVersion());
Serial.println(F("by Mikal Hart"));
Serial.println();
while (*gpsStream)
if (gps.encode(*gpsStream++))
displayInfo();
Serial.println();
Serial.println(F("Done."));
}
void loop()
{
}
void displayInfo()
{
Serial.print(F("Location: "));
if (gps.location.isValid())
{
Serial.print(gps.location.lat(), 6);
Serial.print(F(","));
Serial.print(gps.location.lng(), 6);
}
else
{
Serial.print(F("INVALID"));
}
Serial.print(F(" Date/Time: "));
if (gps.date.isValid())
{
Serial.print(gps.date.month());
Serial.print(F("/"));
Serial.print(gps.date.day());
Serial.print(F("/"));
Serial.print(gps.date.year());
}
else
{
Serial.print(F("INVALID"));
}
Serial.print(F(" "));
if (gps.time.isValid())
{
if (gps.time.hour() < 10) Serial.print(F("0"));
Serial.print(gps.time.hour());
Serial.print(F(":"));
if (gps.time.minute() < 10) Serial.print(F("0"));
Serial.print(gps.time.minute());
Serial.print(F(":"));
if (gps.time.second() < 10) Serial.print(F("0"));
Serial.print(gps.time.second());
Serial.print(F("."));
if (gps.time.centisecond() < 10) Serial.print(F("0"));
Serial.print(gps.time.centisecond());
}
else
{
Serial.print(F("INVALID"));
}
Serial.println();
}

@ -0,0 +1,92 @@
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
/*
This sample sketch demonstrates the normal use of a TinyGPS++ (TinyGPSPlus) object.
It requires the use of SoftwareSerial, and assumes that you have a
4800-baud serial GPS device hooked up on pins 4(rx) and 3(tx).
*/
static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 4800;
// The TinyGPS++ object
TinyGPSPlus gps;
// The serial connection to the GPS device
SoftwareSerial ss(RXPin, TXPin);
void setup()
{
Serial.begin(115200);
ss.begin(GPSBaud);
Serial.println(F("DeviceExample.ino"));
Serial.println(F("A simple demonstration of TinyGPS++ with an attached GPS module"));
Serial.print(F("Testing TinyGPS++ library v. ")); Serial.println(TinyGPSPlus::libraryVersion());
Serial.println(F("by Mikal Hart"));
Serial.println();
}
void loop()
{
// This sketch displays information every time a new sentence is correctly encoded.
while (ss.available() > 0)
if (gps.encode(ss.read()))
displayInfo();
if (millis() > 5000 && gps.charsProcessed() < 10)
{
Serial.println(F("No GPS detected: check wiring."));
while(true);
}
}
void displayInfo()
{
Serial.print(F("Location: "));
if (gps.location.isValid())
{
Serial.print(gps.location.lat(), 6);
Serial.print(F(","));
Serial.print(gps.location.lng(), 6);
}
else
{
Serial.print(F("INVALID"));
}
Serial.print(F(" Date/Time: "));
if (gps.date.isValid())
{
Serial.print(gps.date.month());
Serial.print(F("/"));
Serial.print(gps.date.day());
Serial.print(F("/"));
Serial.print(gps.date.year());
}
else
{
Serial.print(F("INVALID"));
}
Serial.print(F(" "));
if (gps.time.isValid())
{
if (gps.time.hour() < 10) Serial.print(F("0"));
Serial.print(gps.time.hour());
Serial.print(F(":"));
if (gps.time.minute() < 10) Serial.print(F("0"));
Serial.print(gps.time.minute());
Serial.print(F(":"));
if (gps.time.second() < 10) Serial.print(F("0"));
Serial.print(gps.time.second());
Serial.print(F("."));
if (gps.time.centisecond() < 10) Serial.print(F("0"));
Serial.print(gps.time.centisecond());
}
else
{
Serial.print(F("INVALID"));
}
Serial.println();
}

@ -0,0 +1,159 @@
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
/*
This sample code demonstrates the normal use of a TinyGPS++ (TinyGPSPlus) object.
It requires the use of SoftwareSerial, and assumes that you have a
4800-baud serial GPS device hooked up on pins 4(rx) and 3(tx).
*/
static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 4800;
// The TinyGPS++ object
TinyGPSPlus gps;
// The serial connection to the GPS device
SoftwareSerial ss(RXPin, TXPin);
void setup()
{
Serial.begin(115200);
ss.begin(GPSBaud);
Serial.println(F("FullExample.ino"));
Serial.println(F("An extensive example of many interesting TinyGPS++ features"));
Serial.print(F("Testing TinyGPS++ library v. ")); Serial.println(TinyGPSPlus::libraryVersion());
Serial.println(F("by Mikal Hart"));
Serial.println();
Serial.println(F("Sats HDOP Latitude Longitude Fix Date Time Date Alt Course Speed Card Distance Course Card Chars Sentences Checksum"));
Serial.println(F(" (deg) (deg) Age Age (m) --- from GPS ---- ---- to London ---- RX RX Fail"));
Serial.println(F("---------------------------------------------------------------------------------------------------------------------------------------"));
}
void loop()
{
static const double LONDON_LAT = 51.508131, LONDON_LON = -0.128002;
printInt(gps.satellites.value(), gps.satellites.isValid(), 5);
printInt(gps.hdop.value(), gps.hdop.isValid(), 5);
printFloat(gps.location.lat(), gps.location.isValid(), 11, 6);
printFloat(gps.location.lng(), gps.location.isValid(), 12, 6);
printInt(gps.location.age(), gps.location.isValid(), 5);
printDateTime(gps.date, gps.time);
printFloat(gps.altitude.meters(), gps.altitude.isValid(), 7, 2);
printFloat(gps.course.deg(), gps.course.isValid(), 7, 2);
printFloat(gps.speed.kmph(), gps.speed.isValid(), 6, 2);
printStr(gps.course.isValid() ? TinyGPSPlus::cardinal(gps.course.value()) : "*** ", 6);
unsigned long distanceKmToLondon =
(unsigned long)TinyGPSPlus::distanceBetween(
gps.location.lat(),
gps.location.lng(),
LONDON_LAT,
LONDON_LON) / 1000;
printInt(distanceKmToLondon, gps.location.isValid(), 9);
double courseToLondon =
TinyGPSPlus::courseTo(
gps.location.lat(),
gps.location.lng(),
LONDON_LAT,
LONDON_LON);
printFloat(courseToLondon, gps.location.isValid(), 7, 2);
const char *cardinalToLondon = TinyGPSPlus::cardinal(courseToLondon);
printStr(gps.location.isValid() ? cardinalToLondon : "*** ", 6);
printInt(gps.charsProcessed(), true, 6);
printInt(gps.sentencesWithFix(), true, 10);
printInt(gps.failedChecksum(), true, 9);
Serial.println();
smartDelay(1000);
if (millis() > 5000 && gps.charsProcessed() < 10)
Serial.println(F("No GPS data received: check wiring"));
}
// This custom version of delay() ensures that the gps object
// is being "fed".
static void smartDelay(unsigned long ms)
{
unsigned long start = millis();
do
{
while (ss.available())
gps.encode(ss.read());
} while (millis() - start < ms);
}
static void printFloat(float val, bool valid, int len, int prec)
{
if (!valid)
{
while (len-- > 1)
Serial.print('*');
Serial.print(' ');
}
else
{
Serial.print(val, prec);
int vi = abs((int)val);
int flen = prec + (val < 0.0 ? 2 : 1); // . and -
flen += vi >= 1000 ? 4 : vi >= 100 ? 3 : vi >= 10 ? 2 : 1;
for (int i=flen; i<len; ++i)
Serial.print(' ');
}
smartDelay(0);
}
static void printInt(unsigned long val, bool valid, int len)
{
char sz[32] = "*****************";
if (valid)
sprintf(sz, "%ld", val);
sz[len] = 0;
for (int i=strlen(sz); i<len; ++i)
sz[i] = ' ';
if (len > 0)
sz[len-1] = ' ';
Serial.print(sz);
smartDelay(0);
}
static void printDateTime(TinyGPSDate &d, TinyGPSTime &t)
{
if (!d.isValid())
{
Serial.print(F("********** "));
}
else
{
char sz[32];
sprintf(sz, "%02d/%02d/%02d ", d.month(), d.day(), d.year());
Serial.print(sz);
}
if (!t.isValid())
{
Serial.print(F("******** "));
}
else
{
char sz[32];
sprintf(sz, "%02d:%02d:%02d ", t.hour(), t.minute(), t.second());
Serial.print(sz);
}
printInt(d.age(), d.isValid(), 5);
smartDelay(0);
}
static void printStr(const char *str, int len)
{
int slen = strlen(str);
for (int i=0; i<len; ++i)
Serial.print(i<slen ? str[i] : ' ');
smartDelay(0);
}

@ -0,0 +1,189 @@
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
/*
This sample code demonstrates just about every built-in operation of TinyGPS++ (TinyGPSPlus).
It requires the use of SoftwareSerial, and assumes that you have a
4800-baud serial GPS device hooked up on pins 4(rx) and 3(tx).
*/
static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 4800;
// The TinyGPS++ object
TinyGPSPlus gps;
// The serial connection to the GPS device
SoftwareSerial ss(RXPin, TXPin);
// For stats that happen every 5 seconds
unsigned long last = 0UL;
void setup()
{
Serial.begin(115200);
ss.begin(GPSBaud);
Serial.println(F("KitchenSink.ino"));
Serial.println(F("Demonstrating nearly every feature of TinyGPS++"));
Serial.print(F("Testing TinyGPS++ library v. ")); Serial.println(TinyGPSPlus::libraryVersion());
Serial.println(F("by Mikal Hart"));
Serial.println();
}
void loop()
{
// Dispatch incoming characters
while (ss.available() > 0)
gps.encode(ss.read());
if (gps.location.isUpdated())
{
Serial.print(F("LOCATION Fix Age="));
Serial.print(gps.location.age());
Serial.print(F("ms Raw Lat="));
Serial.print(gps.location.rawLat().negative ? "-" : "+");
Serial.print(gps.location.rawLat().deg);
Serial.print("[+");
Serial.print(gps.location.rawLat().billionths);
Serial.print(F(" billionths], Raw Long="));
Serial.print(gps.location.rawLng().negative ? "-" : "+");
Serial.print(gps.location.rawLng().deg);
Serial.print("[+");
Serial.print(gps.location.rawLng().billionths);
Serial.print(F(" billionths], Lat="));
Serial.print(gps.location.lat(), 6);
Serial.print(F(" Long="));
Serial.println(gps.location.lng(), 6);
}
else if (gps.date.isUpdated())
{
Serial.print(F("DATE Fix Age="));
Serial.print(gps.date.age());
Serial.print(F("ms Raw="));
Serial.print(gps.date.value());
Serial.print(F(" Year="));
Serial.print(gps.date.year());
Serial.print(F(" Month="));
Serial.print(gps.date.month());
Serial.print(F(" Day="));
Serial.println(gps.date.day());
}
else if (gps.time.isUpdated())
{
Serial.print(F("TIME Fix Age="));
Serial.print(gps.time.age());
Serial.print(F("ms Raw="));
Serial.print(gps.time.value());
Serial.print(F(" Hour="));
Serial.print(gps.time.hour());
Serial.print(F(" Minute="));
Serial.print(gps.time.minute());
Serial.print(F(" Second="));
Serial.print(gps.time.second());
Serial.print(F(" Hundredths="));
Serial.println(gps.time.centisecond());
}
else if (gps.speed.isUpdated())
{
Serial.print(F("SPEED Fix Age="));
Serial.print(gps.speed.age());
Serial.print(F("ms Raw="));
Serial.print(gps.speed.value());
Serial.print(F(" Knots="));
Serial.print(gps.speed.knots());
Serial.print(F(" MPH="));
Serial.print(gps.speed.mph());
Serial.print(F(" m/s="));
Serial.print(gps.speed.mps());
Serial.print(F(" km/h="));
Serial.println(gps.speed.kmph());
}
else if (gps.course.isUpdated())
{
Serial.print(F("COURSE Fix Age="));
Serial.print(gps.course.age());
Serial.print(F("ms Raw="));
Serial.print(gps.course.value());
Serial.print(F(" Deg="));
Serial.println(gps.course.deg());
}
else if (gps.altitude.isUpdated())
{
Serial.print(F("ALTITUDE Fix Age="));
Serial.print(gps.altitude.age());
Serial.print(F("ms Raw="));
Serial.print(gps.altitude.value());
Serial.print(F(" Meters="));
Serial.print(gps.altitude.meters());
Serial.print(F(" Miles="));
Serial.print(gps.altitude.miles());
Serial.print(F(" KM="));
Serial.print(gps.altitude.kilometers());
Serial.print(F(" Feet="));
Serial.println(gps.altitude.feet());
}
else if (gps.satellites.isUpdated())
{
Serial.print(F("SATELLITES Fix Age="));
Serial.print(gps.satellites.age());
Serial.print(F("ms Value="));
Serial.println(gps.satellites.value());
}
else if (gps.hdop.isUpdated())
{
Serial.print(F("HDOP Fix Age="));
Serial.print(gps.hdop.age());
Serial.print(F("ms Value="));
Serial.println(gps.hdop.value());
}
else if (millis() - last > 5000)
{
Serial.println();
if (gps.location.isValid())
{
static const double LONDON_LAT = 51.508131, LONDON_LON = -0.128002;
double distanceToLondon =
TinyGPSPlus::distanceBetween(
gps.location.lat(),
gps.location.lng(),
LONDON_LAT,
LONDON_LON);
double courseToLondon =
TinyGPSPlus::courseTo(
gps.location.lat(),
gps.location.lng(),
LONDON_LAT,
LONDON_LON);
Serial.print(F("LONDON Distance="));
Serial.print(distanceToLondon/1000, 6);
Serial.print(F(" km Course-to="));
Serial.print(courseToLondon, 6);
Serial.print(F(" degrees ["));
Serial.print(TinyGPSPlus::cardinal(courseToLondon));
Serial.println(F("]"));
}
Serial.print(F("DIAGS Chars="));
Serial.print(gps.charsProcessed());
Serial.print(F(" Sentences-with-Fix="));
Serial.print(gps.sentencesWithFix());
Serial.print(F(" Failed-checksum="));
Serial.print(gps.failedChecksum());
Serial.print(F(" Passed-checksum="));
Serial.println(gps.passedChecksum());
if (gps.charsProcessed() < 10)
Serial.println(F("WARNING: No GPS data. Check wiring."));
last = millis();
Serial.println();
}
}

@ -0,0 +1,150 @@
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
/*
This sample code tracks satellite elevations using TinyGPSCustom objects.
Satellite numbers and elevations are not normally tracked by TinyGPS++, but
by using TinyGPSCustom we get around this.
It requires the use of SoftwareSerial and assumes that you have a
4800-baud serial GPS device hooked up on pins 4(RX) and 3(TX).
*/
static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 4800;
static const int MAX_SATELLITES = 40;
static const int PAGE_LENGTH = 40;
// The TinyGPS++ object
TinyGPSPlus gps;
// The serial connection to the GPS device
SoftwareSerial ss(RXPin, TXPin);
TinyGPSCustom totalGPGSVMessages(gps, "GPGSV", 1); // $GPGSV sentence, first element
TinyGPSCustom messageNumber(gps, "GPGSV", 2); // $GPGSV sentence, second element
TinyGPSCustom satNumber[4]; // to be initialized later
TinyGPSCustom elevation[4];
bool anyChanges = false;
unsigned long linecount = 0;
struct
{
int elevation;
bool active;
} sats[MAX_SATELLITES];
void setup()
{
Serial.begin(115200);
ss.begin(GPSBaud);
Serial.println(F("SatElevTracker.ino"));
Serial.println(F("Displays GPS satellite elevations as they change"));
Serial.print(F("Testing TinyGPS++ library v. ")); Serial.println(TinyGPSPlus::libraryVersion());
Serial.println(F("by Mikal Hart"));
Serial.println();
// Initialize all the uninitialized TinyGPSCustom objects
for (int i=0; i<4; ++i)
{
satNumber[i].begin(gps, "GPGSV", 4 + 4 * i); // offsets 4, 8, 12, 16
elevation[i].begin(gps, "GPGSV", 5 + 4 * i); // offsets 5, 9, 13, 17
}
}
void loop()
{
// Dispatch incoming characters
if (ss.available() > 0)
{
gps.encode(ss.read());
if (totalGPGSVMessages.isUpdated())
{
for (int i=0; i<4; ++i)
{
int no = atoi(satNumber[i].value());
if (no >= 1 && no <= MAX_SATELLITES)
{
int elev = atoi(elevation[i].value());
sats[no-1].active = true;
if (sats[no-1].elevation != elev)
{
sats[no-1].elevation = elev;
anyChanges = true;
}
}
}
int totalMessages = atoi(totalGPGSVMessages.value());
int currentMessage = atoi(messageNumber.value());
if (totalMessages == currentMessage && anyChanges)
{
if (linecount++ % PAGE_LENGTH == 0)
printHeader();
TimePrint();
for (int i=0; i<MAX_SATELLITES; ++i)
{
Serial.print(F(" "));
if (sats[i].active)
IntPrint(sats[i].elevation, 2);
else
Serial.print(F(" "));
sats[i].active = false;
}
Serial.println();
anyChanges = false;
}
}
}
}
void IntPrint(int n, int len)
{
int digs = n < 0 ? 2 : 1;
for (int i=10; i<=abs(n); i*=10)
++digs;
while (digs++ < len)
Serial.print(F(" "));
Serial.print(n);
Serial.print(F(" "));
}
void TimePrint()
{
if (gps.time.isValid())
{
if (gps.time.hour() < 10)
Serial.print(F("0"));
Serial.print(gps.time.hour());
Serial.print(F(":"));
if (gps.time.minute() < 10)
Serial.print(F("0"));
Serial.print(gps.time.minute());
Serial.print(F(":"));
if (gps.time.second() < 10)
Serial.print(F("0"));
Serial.print(gps.time.second());
Serial.print(F(" "));
}
else
{
Serial.print(F("(unknown)"));
}
}
void printHeader()
{
Serial.println();
Serial.print(F("Time "));
for (int i=0; i<MAX_SATELLITES; ++i)
{
Serial.print(F(" "));
IntPrint(i+1, 2);
}
Serial.println();
Serial.print(F("---------"));
for (int i=0; i<MAX_SATELLITES; ++i)
Serial.print(F("----"));
Serial.println();
}

@ -0,0 +1,149 @@
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
/*
This sample code demonstrates how to use an array of TinyGPSCustom objects
to monitor all the visible satellites.
Satellite numbers, elevation, azimuth, and signal-to-noise ratio are not
normally tracked by TinyGPS++, but by using TinyGPSCustom we get around this.
The simple code also demonstrates how to use arrays of TinyGPSCustom objects,
each monitoring a different field of the $GPGSV sentence.
It requires the use of SoftwareSerial, and assumes that you have a
4800-baud serial GPS device hooked up on pins 4(RX) and 3(TX).
*/
static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 4800;
// The TinyGPS++ object
TinyGPSPlus gps;
// The serial connection to the GPS device
SoftwareSerial ss(RXPin, TXPin);
/*
From http://aprs.gids.nl/nmea/:
$GPGSV
GPS Satellites in view
eg. $GPGSV,3,1,11,03,03,111,00,04,15,270,00,06,01,010,00,13,06,292,00*74
$GPGSV,3,2,11,14,25,170,00,16,57,208,39,18,67,296,40,19,40,246,00*74
$GPGSV,3,3,11,22,42,067,42,24,14,311,43,27,05,244,00,,,,*4D
1 = Total number of messages of this type in this cycle
2 = Message number
3 = Total number of SVs in view
4 = SV PRN number
5 = Elevation in degrees, 90 maximum
6 = Azimuth, degrees from true north, 000 to 359
7 = SNR, 00-99 dB (null when not tracking)
8-11 = Information about second SV, same as field 4-7
12-15= Information about third SV, same as field 4-7
16-19= Information about fourth SV, same as field 4-7
*/
static const int MAX_SATELLITES = 40;
TinyGPSCustom totalGPGSVMessages(gps, "GPGSV", 1); // $GPGSV sentence, first element
TinyGPSCustom messageNumber(gps, "GPGSV", 2); // $GPGSV sentence, second element
TinyGPSCustom satsInView(gps, "GPGSV", 3); // $GPGSV sentence, third element
TinyGPSCustom satNumber[4]; // to be initialized later
TinyGPSCustom elevation[4];
TinyGPSCustom azimuth[4];
TinyGPSCustom snr[4];
struct
{
bool active;
int elevation;
int azimuth;
int snr;
} sats[MAX_SATELLITES];
void setup()
{
Serial.begin(115200);
ss.begin(GPSBaud);
Serial.println(F("SatelliteTracker.ino"));
Serial.println(F("Monitoring satellite location and signal strength using TinyGPSCustom"));
Serial.print(F("Testing TinyGPS++ library v. ")); Serial.println(TinyGPSPlus::libraryVersion());
Serial.println(F("by Mikal Hart"));
Serial.println();
// Initialize all the uninitialized TinyGPSCustom objects
for (int i=0; i<4; ++i)
{
satNumber[i].begin(gps, "GPGSV", 4 + 4 * i); // offsets 4, 8, 12, 16
elevation[i].begin(gps, "GPGSV", 5 + 4 * i); // offsets 5, 9, 13, 17
azimuth[i].begin( gps, "GPGSV", 6 + 4 * i); // offsets 6, 10, 14, 18
snr[i].begin( gps, "GPGSV", 7 + 4 * i); // offsets 7, 11, 15, 19
}
}
void loop()
{
// Dispatch incoming characters
if (ss.available() > 0)
{
gps.encode(ss.read());
if (totalGPGSVMessages.isUpdated())
{
for (int i=0; i<4; ++i)
{
int no = atoi(satNumber[i].value());
// Serial.print(F("SatNumber is ")); Serial.println(no);
if (no >= 1 && no <= MAX_SATELLITES)
{
sats[no-1].elevation = atoi(elevation[i].value());
sats[no-1].azimuth = atoi(azimuth[i].value());
sats[no-1].snr = atoi(snr[i].value());
sats[no-1].active = true;
}
}
int totalMessages = atoi(totalGPGSVMessages.value());
int currentMessage = atoi(messageNumber.value());
if (totalMessages == currentMessage)
{
Serial.print(F("Sats=")); Serial.print(gps.satellites.value());
Serial.print(F(" Nums="));
for (int i=0; i<MAX_SATELLITES; ++i)
if (sats[i].active)
{
Serial.print(i+1);
Serial.print(F(" "));
}
Serial.print(F(" Elevation="));
for (int i=0; i<MAX_SATELLITES; ++i)
if (sats[i].active)
{
Serial.print(sats[i].elevation);
Serial.print(F(" "));
}
Serial.print(F(" Azimuth="));
for (int i=0; i<MAX_SATELLITES; ++i)
if (sats[i].active)
{
Serial.print(sats[i].azimuth);
Serial.print(F(" "));
}
Serial.print(F(" SNR="));
for (int i=0; i<MAX_SATELLITES; ++i)
if (sats[i].active)
{
Serial.print(sats[i].snr);
Serial.print(F(" "));
}
Serial.println();
for (int i=0; i<MAX_SATELLITES; ++i)
sats[i].active = false;
}
}
}
}

@ -0,0 +1,69 @@
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
/*
This sample demonstrates TinyGPS++'s capacity for extracting custom
fields from any NMEA sentence. TinyGPS++ has built-in facilities for
extracting latitude, longitude, altitude, etc., from the $GPGLL and
$GPRMC sentences. But with the TinyGPSCustom type, you can extract
other NMEA fields, even from non-standard NMEA sentences.
It requires the use of SoftwareSerial, and assumes that you have a
4800-baud serial GPS device hooked up on pins 4(RX) and 3(TX).
*/
static const int RXPin = 4, TXPin = 3;
static const uint32_t GPSBaud = 4800;
// The TinyGPS++ object
TinyGPSPlus gps;
// The serial connection to the GPS device
SoftwareSerial ss(RXPin, TXPin);
/*
By declaring TinyGPSCustom objects like this, we announce that we
are interested in the 15th, 16th, and 17th fields in the $GPGSA
sentence, respectively the PDOP (F("positional dilution of precision")),
HDOP (F("horizontal...")), and VDOP (F("vertical...")).
(Counting starts with the field immediately following the sentence name,
i.e. $GPGSA. For more information on NMEA sentences, consult your
GPS module's documentation and/or http://aprs.gids.nl/nmea/.)
If your GPS module doesn't support the $GPGSA sentence, then you
won't get any output from this program.
*/
TinyGPSCustom pdop(gps, "GPGSA", 15); // $GPGSA sentence, 15th element
TinyGPSCustom hdop(gps, "GPGSA", 16); // $GPGSA sentence, 16th element
TinyGPSCustom vdop(gps, "GPGSA", 17); // $GPGSA sentence, 17th element
void setup()
{
Serial.begin(115200);
ss.begin(GPSBaud);
Serial.println(F("UsingCustomFields.ino"));
Serial.println(F("Demonstrating how to extract any NMEA field using TinyGPSCustom"));
Serial.print(F("Testing TinyGPS++ library v. ")); Serial.println(TinyGPSPlus::libraryVersion());
Serial.println(F("by Mikal Hart"));
Serial.println();
}
void loop()
{
// Every time anything is updated, print everything.
if (gps.altitude.isUpdated() || gps.satellites.isUpdated() ||
pdop.isUpdated() || hdop.isUpdated() || vdop.isUpdated())
{
Serial.print(F("ALT=")); Serial.print(gps.altitude.meters());
Serial.print(F(" PDOP=")); Serial.print(pdop.value());
Serial.print(F(" HDOP=")); Serial.print(hdop.value());
Serial.print(F(" VDOP=")); Serial.print(vdop.value());
Serial.print(F(" SATS=")); Serial.println(gps.satellites.value());
}
while (ss.available() > 0)
gps.encode(ss.read());
}

@ -0,0 +1,73 @@
#######################################
# Syntax Coloring Map for TinyGPS++
#######################################
#######################################
# Datatypes (KEYWORD1)
#######################################
TinyGPSPlus KEYWORD1
TinyGPSLocation KEYWORD1
TinyGPSDate KEYWORD1
TinyGPSTime KEYWORD1
TinyGPSSpeed KEYWORD1
TinyGPSCourse KEYWORD1
TinyGPSAltitude KEYWORD1
TinyGPSInteger KEYWORD1
TinyGPSDecimal KEYWORD1
TinyGPSCustom KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
encode KEYWORD2
location KEYWORD2
date KEYWORD2
time KEYWORD2
speed KEYWORD2
course KEYWORD2
altitude KEYWORD2
satellites KEYWORD2
hdop KEYWORD2
libraryVersion KEYWORD2
distanceBetween KEYWORD2
courseTo KEYWORD2
cardinal KEYWORD2
charsProcessed KEYWORD2
sentencesWithFix KEYWORD2
failedChecksum KEYWORD2
passedChecksum KEYWORD2
isValid KEYWORD2
isUpdated KEYWORD2
age KEYWORD2
rawLatDegrees KEYWORD2
rawLngDegrees KEYWORD2
rawLatBillionths KEYWORD2
rawLngBillionths KEYWORD2
lat KEYWORD2
lng KEYWORD2
isUpdatedDate KEYWORD2
isUpdatedTime KEYWORD2
year KEYWORD2
month KEYWORD2
day KEYWORD2
hour KEYWORD2
minute KEYWORD2
second KEYWORD2
centisecond KEYWORD2
value KEYWORD2
knots KEYWORD2
mph KEYWORD2
mps KEYWORD2
kmph KEYWORD2
deg KEYWORD2
meters KEYWORD2
miles KEYWORD2
kilometers KEYWORD2
feet KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

@ -1,4 +1,4 @@
#include <TinyGPS++.h>
#include "lib/TinyGPS++/TinyGPS++.h"
#include "config.h"
#include "gps.h"
#include "wifi.h"
@ -35,7 +35,7 @@ void measure(WifiState& wifiState, TinyGPSLocation& loc) {
// measure WiFi
wifiState = wifi.scan(WIFI_SSID);
// update gps position if we can't get a fix, skip the measurements
// update gps position. if we can't get a fix, skip the measurements
if(!gps.updateLocation() || !gps.updateTime()) {
DEBUG_OUT << "GPS timed out, skipping measurements" << EOL;
digitalWrite(BUILTIN_LED, LOW); // turn status LED on
@ -73,27 +73,35 @@ void measure(WifiState& wifiState, TinyGPSLocation& loc) {
}
void upload(WifiState& wifiState) {
bool connected = wifi.isConnected();
size_t numMeasures = storage.size();
DEBUG_OUT << numMeasures << " measurements stored." << EOL;
if (!numMeasures) return;
// in case we are not measuring, scan manually to detect the home network
if (digitalRead(PIN_MEASURE_MODE) == LOW)
// somehow the automatic reconnect does not work.. TODO
if (!connected && digitalRead(PIN_MEASURE_MODE) == LOW)
wifiState = wifi.scan(WIFI_SSID);
// connect to wifi, if available & not connected yet
// once we are connected, upload (max) 5 stored measurements & free the storage
if (wifi.isConnected() || (wifiState.homeAvailable && wifi.connect(WIFI_SSID, WIFI_PASS)) ) {
// once we are connected, upload stored measurements & free the storage
// only upload limited measures per cycle, to avoid long gaps in measurements
if (connected || (wifiState.homeAvailable && wifi.reconnect()) ) {
uint16_t uploadCount = 0;
String measure;
// only upload limited measures per cycle, to avoid long gaps in measurements
int separatorPos;
String fileName;
while (storage.size() && uploadCount++ < MAX_UPLOADS_PER_CYCLE) {
measure = storage.pop();
measure = storage.get(fileName);
separatorPos = measure.indexOf('\n');
DEBUG_OUT << "Uploading measurement for " << measure;
if (api.postMeasurement(measure.substring(API_KEY_LENGTH + 1), measure.substring(0, API_KEY_LENGTH)))
if (api.postMeasurement(measure.substring(separatorPos + 1), measure.substring(0, separatorPos))) {
// remove the measurement from the local storage on success
DEBUG_OUT << "success!" << EOL;
else
storage.remove(fileName);
} else {
DEBUG_OUT << "upload failed!" << EOL;
}
}
} else {
DEBUG_OUT << "wifi connection to " << WIFI_SSID << " failed" << EOL;
@ -101,11 +109,15 @@ void upload(WifiState& wifiState) {
DEBUG_OUT << EOL;
}
// delay for a given duration (ms), rollover-safe implementation
// offset may be a duration which has been "used up" before, so the delay is adaptive,
// meaning that the interval of a adaptiveDelay() call is constant
// returns earlier, if we moved more than MEASUREMENT_DISTANCE meters from our last fix
void adaptiveDelay(unsigned long ms, TinyGPSLocation& lastLoc, unsigned long offset = 0) {
/**
* delay for a given duration (ms), rollover-safe implementation
* offset may be a duration which has been "used up" before, so the delay is adaptive,
* meaning that the interval of a adaptiveDelay() call is constant
* returns earlier, if we moved more than MEASUREMENT_DISTANCE meters from our last fix
*
* also polls the GPS serial & telnet connections!
*/
void adaptiveDelay(unsigned long ms, TinyGPSLocation& lastLoc, unsigned long offset = 0, bool checkDistance = false) {
unsigned long start = millis();
for (;;) {
// for some reason, operations have to be performed in this loop for
@ -116,7 +128,7 @@ void adaptiveDelay(unsigned long ms, TinyGPSLocation& lastLoc, unsigned long off
// update our location. if we moved MEASUREMENT_DISTANCE meters or more, return
TinyGPSLocation newLoc = gps.getLocation();
double distanceToPrevLoc = TinyGPSPlus::distanceBetween(lastLoc.lat(), lastLoc.lng(), newLoc.lat(), newLoc.lng());
if (MEASUREMENT_DISTANCE_ENABLED && distanceToPrevLoc >= MEASUREMENT_DISTANCE) {
if (checkDistance && distanceToPrevLoc >= MEASUREMENT_DISTANCE) {
DEBUG_OUT << "moved " << distanceToPrevLoc << "m, delay stopped." << EOL;
return;
}
@ -137,21 +149,23 @@ void setup() {
size_t bytesFree = storage.begin();
gps.begin();
wifi.begin();
// DEBUG: just for connection to telnet printer
wifi.connect(WIFI_SSID, WIFI_PASS);
DEBUG_OUT.begin();
delay(3000);
telnet.pollClients();
wifi.begin(WIFI_SSID, WIFI_PASS);
DEBUG_OUT.begin(115200);
// wait until we got a first fix from GPS, and thus an initial time
// wait until we got a first fix from GPS, and thus an initial *time*
DEBUG_OUT << "Getting GPS fix..";
while (!gps.updateLocation()) { DEBUG_OUT << "."; }
while (!gps.updateLocation()) {
adaptiveDelay(0, location); // poll for telnet connections
DEBUG_OUT << ".";
}
location = gps.getLocation();
DEBUG_OUT << " done!" << EOL;
digitalWrite(BUILTIN_LED, HIGH);
// DEBUG
//while (!wifi.isConnected()) adaptiveDelay(500, location);
//String temp; while (storage.size()) storage.get(temp, true);
DEBUG_OUT << "Setup done!" << EOL;
DEBUG_OUT << "WiFi MAC WiFi IP" << EOL;
DEBUG_OUT << WiFi.macAddress() << " " << WiFi.localIP() << EOL;
@ -161,16 +175,20 @@ void setup() {
void loop() {
cycleStart = millis();
adaptiveDelay(0, location); // do some polling inbetween
if (digitalRead(PIN_MEASURE_MODE) == HIGH)
measure(wifiState, location);
adaptiveDelay(0, location); // do some polling inbetween
if (digitalRead(PIN_UPLOAD_MODE) == HIGH)
upload(wifiState);
if (digitalRead(PIN_MEASURE_MODE) == HIGH) {
// run the measurements in a fixed interval, using an adaptive delay
// the interval is defined by a duration and/or distance from our last fix
return adaptiveDelay(MEASUREMENT_INTERVAL, location, millis() - cycleStart);
return adaptiveDelay(MEASUREMENT_INTERVAL, location, millis() - cycleStart, MEASUREMENT_DISTANCE_ENABLED);
}
// run as fast as possible when not measuring.
// smartDelay has to be called anyway, as some polling functions are run within

@ -1,39 +1,37 @@
#pragma once
#include <FS.h>
#include <ESP8266TrueRandom.h>
#include "lib/ESP8266TrueRandom/ESP8266TrueRandom.h"
#include "config.h"
#include "streampipe.h"
#define MEASUREMENT_JSON_SIZE (JSON_OBJECT_SIZE(4)) // 4 properties (sensorID is excluded)
struct Measurement {
char timeStamp[20];
float lat;
float lng;
float value;
char sensorID[API_KEY_LENGTH];
char sensorID[24];
};
class Storage {
protected:
void serializeMeasurement(Measurement& m, Print& f) {
// prepend the sensor ID to the json
f << m.sensorID << EOL;
f << m.sensorID << '\n';
// convert floats to strings
char val[10], lat[10], lng[10];
dtostrf(m.value, 5, 6, val);
dtostrf(m.lat, 5, 6, lat);
dtostrf(m.lng, 5, 6, lng);
f << "{\"value\":" << val
<< ",\"createdAt\":\"" << m.timeStamp
<< "\",\"lat\":" << lat
<< ",\"lng\":" << lng
<< "}" << EOL;
}
public:
Storage() {}
@ -43,13 +41,13 @@ class Storage {
SPIFFS.info(fs);
return fs.totalBytes - fs.usedBytes;
}
bool add(Measurement& m, const char* directory = "/measurements/") {
byte uuid[16];
ESP8266TrueRandom.uuid(uuid);
// we need to shorten the uuid, as long filenames are not supported it seems..?
String fileName = directory + ESP8266TrueRandom.uuidToString(uuid).substring(26);
if (File f = SPIFFS.open(fileName, "w") ) {
serializeMeasurement(m, f);
f.close();
@ -58,24 +56,28 @@ class Storage {
return false;
}
String pop(const char* directory = "/measurements/") {
String get(String& fileName, boolean remove = false, const char* directory = "/measurements/") {
Dir dir = SPIFFS.openDir(directory);
String measurement = "";
if (!dir.next()) return measurement; // abort if storage is empty
String fileName = dir.fileName();
fileName = dir.fileName();
File f = dir.openFile("r");
measurement = f.readString();
f.close();
SPIFFS.remove(fileName);
if (remove) SPIFFS.remove(fileName);
return measurement;
}
bool remove(String& fileName, const char* directory = "/measurements/") {
return SPIFFS.remove(fileName);
}
uint16_t size(const char* directory = "/measurements/") {
Dir dir = SPIFFS.openDir(directory);
uint16_t i = 0;
while(dir.next()) i++;
return i;
}
};

@ -11,13 +11,31 @@ struct WifiState {
class Wifi {
public:
void begin() {
WiFi.mode(WIFI_STA);
/*
* connects to the provided network.
* if the connection is lost, it will attempt to reconnect,
* when the SSID is found again
*
* also sets up an open AP "mobile-sensebox", on which you
* you can get debug output via telnet on 192.168.1.1:23
*/
void begin(const char* ssid, const char* pass) {
const IPAddress AP_IP(192, 168, 1, 1);
const IPAddress AP_gateway(192, 168, 1, 1);
const IPAddress AP_subnet(255, 255, 255, 0);
WiFi.mode(WIFI_AP_STA);
WiFi.persistent(false); //
WiFi.setAutoConnect(false); // <-- weird?!
WiFi.setAutoReconnect(false); //
WiFi.begin(ssid, pass);
WiFi.softAPConfig (AP_IP, AP_gateway, AP_subnet);
WiFi.softAP("mobile-sensebox");
}
WifiState scan(String homeSSID) {
WifiState state;
int n = WiFi.scanNetworks(false,false);
int n = WiFi.scanNetworks(false, true); // (execute async, list hidden networks)
state.numAccessPoints = n;
state.numNetworks = n;
state.numUnencrypted = 0;
@ -47,26 +65,12 @@ class Wifi {
}
}
WiFi.scanDelete();
return state;
}
bool connect(const char* ssid, const char* pass) {
static const unsigned int timeout = 10000; // abort after 10 secs
unsigned long start = millis();
WiFi.disconnect();
WiFi.begin(ssid, pass);
//telnet.print("Connecting to WiFi.");
while (WiFi.status() != WL_CONNECTED && millis() - start < timeout) {
delay(200);
//telnet.print(".");
}
if (WiFi.status() == WL_CONNECTED) {
//telnet.println("connected!");
return true;
}
//telnet.println(" timeout");
return false;
bool reconnect() {
return WiFi.reconnect();
}
bool isConnected() {

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