temp_relai.ino

#define BLYNK_PRINT Serial

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <LOLIN_HP303B.h>
LOLIN_HP303B HP303B;

const int relayPin = D3; //Pin pour Relai

char auth[] = "*"; //Blynk


BlynkTimer timer;
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Freebox-48A525";
char pass[] = "*";

int relayState = LOW; //Relais coupé


void setup()
{
  // Debug console

  Serial.begin(115200);
  while (!Serial)
    ;
  
  //Address of the HP303B (0x77 or 0x76)
  HP303B.begin(); // I2C address = 0x77
  Blynk.config(auth, "192.168.250.21", 8080);
  Blynk.connect();
}


BLYNK_WRITE(V10)
{
  int temp_voulue = param.asInt(); // assigning incoming value from pin V10 to a variable

  // process received value
  Serial.println("temperature voulue : ");
  Serial.println(temp_voulue);
}


void loop()
{
  Blynk.run();
  
  int32_t temperature;
    int16_t oversampling = 7;
    int16_t ret;
    Serial.println();

    ret = HP303B.measureTempOnce(temperature, oversampling);

    if (ret != 0)
    {
        Serial.print("FAIL! ret = ");
        Serial.println(ret);
    }
    else
    {
      
      Blynk.virtualWrite(V5, temperature);
      }
  
  int32_t temp_voulue;
 // si temp_capteur < temp_voulue 
  if (temperature < temp_voulue) {
    
    // toggle the relay
    relayState = HIGH;
    digitalWrite(relayPin, relayState);
    Serial.print(temperature);   
    Serial.print("° < ");
    Serial.print(temp_voulue);
    Serial.print("° on chauffe ! ");
  }
  else {
    relayState = LOW;
    digitalWrite(relayPin, relayState);
    Serial.print(temperature);   
    Serial.print("° > ");
    Serial.print(temp_voulue);
    Serial.print("° on ne chauffe pas ! ");
    
    }
 
  timer.run();

}