Trusty Temperature Tool

// This #include statement was automatically added by the Particle IDE.
#include <Adafruit_BMP280.h>

// This #include statement was automatically added by the Particle IDE.
#include <Adafruit_BME280.h>


/***************************************************************************
  This is a library for the BME280 humidity, temperature & pressure sensor

  Designed specifically to work with the Adafruit BME280 Breakout
  ----> http://www.adafruit.com/products/2650

  These sensors use I2C or SPI to communicate, 2 or 4 pins are required
  to interface.

  Adafruit invests time and resources providing this open source code,
  please support Adafruit andopen-source hardware by purchasing products
  from Adafruit!

  Written by Limor Fried & Kevin Townsend for Adafruit Industries.
  BSD license, all text above must be included in any redistribution

  This file was modified by Markus Haack (https://github.com/mhaack)
  in order to work with Particle Photon & Core.
 ***************************************************************************/



#define BME_SCK D4
#define BME_MISO D3
#define BME_MOSI D2
#define BME_CS D5

#define SEALEVELPRESSURE_HPA (1013.25)


Adafruit_BME280 bme; // I2C

Timer timer(10000, checkEnvironment); // call this function every 10 seconds
Timer timer2(10000, serialDebug); // call this function every 10 seconds
Timer timer3(15000, updateThingspeak);

//global Vars

int caladdress = 0;
double bme280temp = 0;
double bme280baro = 0;
double bme280humidity = 0;
double bme280altitude = 0;
float analog1 = 0;
int connect = D7;
int count = 0;
int connectlog = 0;
const String key = "your key here"; //thingspeak write key

//ApplicationWatchdog wd(5000, System.reset); //5 second application watchdog
SYSTEM_MODE(SEMI_AUTOMATIC);



ApplicationWatchdog wd(60000, System.reset);


void setup() {


  pinMode(D7, OUTPUT);
  Serial.begin(230400);
  Serial.println(F("BME280 test"));

  
  
  Particle.publish("DEBUG", "starting...");

  if (bme.begin(0x76)) {  //0x76 is the i2c address of the sensor
    Particle.publish("DEBUG", "starting the environment timer...");
    timer.start(); //initialize timer
    timer2.start();//initialize timer2
    timer3.start();//initialize timer2
  }
  else {
    Particle.publish("WARN", "Could not find a valid BMP280 sensor, check wiring!");
  }

  Particle.publish("DEBUG", "started!");
 
  Particle.connect(); 
  Particle.variable("bme280temp", bme280temp);
  Particle.variable("bme280hum", bme280humidity);
  Particle.variable("bme280bar", bme280baro);
  Particle.variable("bme280alt", bme280altitude);
  
  }
 

void loop() {
    wd.checkin(); //watchdog checkin
    
    if (System.buttonPushed() > 2000) { //trigger a wifi disconnect if you hold for over 2 seconds.
        //RGB.color(255, 255, 0); // YELLOW
        if (Particle.connected() == false) {  //if not connected, delay, 5000ms before attempting reconnect.  without delay was causing gps to fail.
            Serial.println("Connecting to wifi");
		    Particle.connect();
		    delay(1000);
        } else {
            //Particle.disconnect();
            WiFi.off();
            delay(1000);
        }   
    }
}



void serialDebug() {
    Serial.print("Temperature = ");
    Serial.print(bme.readTemperature());
    Serial.println(" *C");

    Serial.print("Pressure = ");

    Serial.print(bme.readPressure() / 100.0F);
    Serial.println(" hPa");

    Serial.print("Approx. Altitude = ");
    Serial.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
    Serial.println(" m");

    Serial.print("Humidity = ");
    Serial.print(bme.readHumidity());
    Serial.println(" %");

    Serial.println();
}

void checkEnvironment() {

  Particle.publish("RSSI", String(WiFi.RSSI()));

  bme280temp = cToF(bme.readTemperature());
  bme280baro = pToHg(bme.readPressure());
  bme280altitude = bme.readAltitude(SEALEVELPRESSURE_HPA);
  bme280humidity = bme.readHumidity();

  Particle.subscribe("goodsignal", connection, "your other device id here");

    

}

float cToF(float c) {
  return c * 9/5 + 32;
}

float pToHg(float p) {
  return p/3389.39;
}
void connection(const char *event, const char *data){
    connectlog = atof(data);
    if (connectlog == 1){
        digitalWrite(connect, HIGH);
        delay(1000);
        digitalWrite(connect, LOW);
        delay(1000);
        digitalWrite(connect, HIGH);
        delay(1000);
        digitalWrite(connect, LOW);
        delay(1000);
        digitalWrite(connect, HIGH);
        delay(1000);
        digitalWrite(connect, LOW);
        delay(1000);
    }
    else{
        digitalWrite(connect, LOW);
    }
    
   delay(5000);
}
/*******************************************************************************
 * Function Name  : updateThingspeak
 * Description    : sends variables to ts
 * Input          : doorstatus global variables
 * Output         : sends data to ts
 * Return         : void
                    
 *******************************************************************************/
bool updateThingspeak() 
{
    //delay (2000);
    count++;
    Serial.print("Updating Thingspeak:");
    Serial.print(count);
    
    int rssival = WiFi.RSSI();
    //sprintf(publishString,"%d",rssival);
    //bool success = Particle.publish("RSSI",publishString);
    
    //sprintf(publishString, "%1.4f", checkbattery());

      bool success = Particle.publish("thingSpeakWrite_All", +
     "{ \"1\": \"" + String(rssival) + "\"," +
       "\"2\": \"" + String(bme280temp) + "\"," +
       "\"3\": \"" + String(bme280humidity) + "\"," +
       "\"4\": \"" + String(bme280baro) + "\"," +
       "\"5\": \"" + String(bme280altitude) + "\"," +
       "\"k\": \"" + key + "\" }", 60, PRIVATE);
    return success; //if sent, then turn of the send flag, otherwise let it try again.
    
}