Yan
Published © GPL3+

Particle Asset Tracker with MySignal.io Using MQTT

Send the GPS coordinates from your Particle Electron Asset Tracker kit to MySignal.io using MQTT.

EasyProtip30 minutes2,025
Particle Asset Tracker with MySignal.io Using MQTT

Things used in this project

Hardware components

Particle Asset Tracker Kit
×1
Electron
Particle Electron
×1

Software apps and online services

MySignal.io
Particle IDE

Story

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Code

Asset Tracker Example

C/C++
#include "SignalMQTT.h"
#include "AssetTracker.h"

// Once you created a device at mysignal.io, you'll begin
// given a device token. Insert the device token between the quotes
#ifndef TOKEN
#define TOKEN "your device token here"
#endif

void callback(char* topic, byte* payload, unsigned int length);

// Track last time coordinates were published
long lastPublish = 0;

// How many milliseconds between publishes 
int delayMillis = 10000;

AssetTracker t = AssetTracker();

// Define a client connection name 'signal'
MySignal signal(TOKEN, callback);

void callback(char* topic, uint8_t* payload, unsigned int length) {
    char p[length + 1];
    memcpy(p, payload, length);
    p[length] = NULL;
}

void setup() {
    t.begin();
    
    t.gpsOn();

    // Opens up a Serial port so you can listen over USB
    Serial.begin(9600);
    
    // Initialize the connection to Signal
    signal.initialize();

}

// loop() runs continuously
void loop() {        

    // Reconnect if connection to Signal was lost
    if(!signal.isConnected()){
        signal.connect();
    }
    
    t.updateGPS();

    // Delay the loop
    if (millis()-lastPublish > delayMillis) {
        lastPublish = millis();

        if (t.gpsFix()) {
            if (signal.isConnected()) {
                // Publish coordinates
                signal.publishCoordinates(t.readLatLon());
            }
            Serial.println(t.readLatLon());
        }
    }

    // Maintain the connection to Signal if connected
    if (signal.isConnected()){
        signal.loop();
    }
}

Signal MQTT library for Particle

Credits

Yan

Yan

1 project • 4 followers
Founder @Signal. Freelance developer via http://statiklabs.com

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