ThingSpeak

enclose copy of my code- I should receive some serial feedback like Channel update successful. Run conditions are true Time remaining 5 : 37

but I have received nothing from serial and the lcd just says "feeding in:"-

#include max6675.h #include Servo.h #include LiquidCrystal_I2C.h #include BigNumbers_I2C.h #include math.h

// Thermocouple variables int thermoCsPort = 6; // CS pin on MAX6675 int thermoSoPort = 7; //SO pin of MAX6675 int thermoSckkPort = 8; // SCK pin of MAX6675 int units = 1; // Units to readout temp (0 = ˚F, 1 = ˚C) float error = 0.0; // Temperature compensation error

// Buzzer variables int buzzerPort = 9; // Buzzer port int buzzerRefillFrequency = 2000; // Buzzer tone frequency for refill alarm int buzzerRefillRepeat = 3; // Number of refill alarm tones int buzzerRefillDelay = 1000; // Delay of refill alarm tone int buzzerCloseFrequency = 1000; // Buzzer tone frequency for end of fire valve close alarm int buzzerCloseRepeat = 2; // Number of tones for end of fire valve close alarm int buzzerCloseDelay = 2000; // Delay of tone for end of fire valve close alarm

// Potentiometre variables int servoPort = 0; int potentioPort = 0;

// Device objects Servo myservo; float servoCalibration = 1.0; // modify this value so that servo is at 90° when angle is 90° (mine appears not to be calibrated) MAX6675 thermocouple(thermoSckkPort, thermoCsPort, thermoSoPort); //,units,error); LiquidCrystal_I2C lcd(0x27,20,4); BigNumbers_I2C bigNum(&lcd); // construct BigNumbers_I2C object, passing to it the name of our LCD object

// Regulation variables (Base on PID : // drawing = kP* errP + kI * errI + kD * errD // errP = consigneTemperature - temperature // errI = errP integral // errD = errP derivative int temperature = 0; float temperatureMin = 70; // under this temperature, the regulation starts an integral measure to estimate end or fire and close the valve float consigneTemperature = 180.0; // the desired temperature measured by the thermocouple float errP = 0.0; float errD = 0.0; float errI = 0.0; float errOld = 0.0; float kP = 5; // P parameter of the PID regulation float kI = .0005; // I parameter of the PID regulation float kD = 0.00005; // D parameter of the PID regulation

float refillTrigger = 5000; // refillTrigger used to notify need of a wood refill float closeTrigger = 15000; // closeTrigger used to close vlave at end of combustion

int potentio = 0; int oldPotentio = 0; float potentioMax = 1023.0; // Potentiometre calibration int potentionRelMax = 80; // Potentiometre value above which the regulator runs in automatic mode

int angle = 0; int drawing = 0; int oldDrawing = 0; float maxDrawing = 100.0; float minDrawing = 5.0; float zeroDrawing = 0.0;

String messageTmp; String messageDrw;

boolean closeBuzzer = true; boolean refillBuzzer = true;

void setup() { Serial.begin(9600); myservo.attach(10); myservo.write(0); myservo.detach(); lcd.init(); lcd.backlight(); bigNum.begin(); // set up BigNumbers Serial.println(__FILE__);

//Serial.println("Consigne="+ String(consigneTemperature) +" kP="+String(kP)+" kI="+String(kI)+ " kD="+String(kD));
//Serial.println("Temperature;Drawing");
pinMode(buzzerPort, OUTPUT);

} byte x = 0;//x & y determines position of character on screen byte y = 0;

void loop() { delay(5000); temperature = thermocouple.readCelsius(); potentio = analogRead(potentioPort);

delay(500);
if (temperature == -1) {
  Serial.println("Thermocouple Error!!"); // Temperature is -1 and there is a thermocouple error
} else {

    potentio =   (potentioMax - potentio) * 100 / potentioMax ;

    if (potentio < potentionRelMax ) {
      // Potentiometre regulation
      drawing = round(potentio * maxDrawing / 100);
      errI = 0;
      errD = 0;
      closeBuzzer = true;
      refillBuzzer = true;
      messageDrw = "Drw=" + String(round(drawing / maxDrawing * 100)) + "%"  + " <)= "  + String(round(drawing * 90 / maxDrawing)) + "" ;
    }
    else
    { 
      //  if(errI<closeTrigger && errP < 0 ){// Stop if end of combustion and temp decrease
      if (errI < closeTrigger  ) {
        // Serial.println(String(temperature)+";"+String(drawing/maxDrawing* 100)+";"+String(errP)+";"+String(errI)+";"+String(errD));
        // PID regulation
        errP = consigneTemperature - temperature;
        errI = errI + errP;
        errD = errP - errOld;
        drawing = kP * errP + kI * errI + kD * errD;
        errOld = errP;

        // Limit values to physical constraints ..
        if (drawing < minDrawing) drawing = minDrawing;
        if (drawing > maxDrawing)   drawing = maxDrawing;

        // Close end fire
        if (errI >= closeTrigger) errI = closeTrigger;
        if (temperature < temperatureMin) errI = 0;
        if (errI >= closeTrigger) drawing = zeroDrawing;

        messageDrw = "Drw=" + String(round(drawing / maxDrawing * 100)) + "%"  + " <)= "  + String(round(drawing * 90 / maxDrawing)) + "" ;
        //Refill Alarm
        if (errI > refillTrigger) {
          messageDrw = "Please refill !!" ;
          if (refillBuzzer) {
            for (int i = 0; i < buzzerRefillRepeat; i++) {
              tone(buzzerPort, buzzerRefillFrequency);
              delay(buzzerRefillDelay);
              noTone(buzzerPort);
              delay(buzzerRefillDelay);
            }
            refillBuzzer = false;
          }
          if (temperature > consigneTemperature) {
            errI = 0;
            errD = 0;
            refillBuzzer = true;
          }
        }

      }

      else {
        // Close Valve if end of combustion
        messageDrw = "Fire End.  <)= "  + String(round(drawing * 90 / maxDrawing)) + "" ;

        if (closeBuzzer) {
          for (int i = 0; i < buzzerCloseRepeat; i++) {
            tone(buzzerPort, buzzerCloseFrequency);
            delay(buzzerCloseDelay);
            noTone(buzzerPort);
            delay(buzzerCloseDelay);
          }
          closeBuzzer = false;
        }
      }
    }

    // Display message on LCD
    lcd.clear();
    lcd.setCursor(15, 0);
 lcd.print("Fire");
 bigNum.displayLargeInt(temperature, x, y, 4,false);
 lcd.setCursor(15,1);
 lcd.print("Temp"); 
 lcd.setCursor(0,2);
    messageTmp = "Temp=" + String(temperature) + "C" + "  " + " Po=" + round(potentio) + "%" ;
    lcd.print(messageTmp );

    lcd.setCursor(0, 3);
    lcd.print(messageDrw);
    // Serial Plotter
    // Serial.print(round(drawing/maxDrawing* 100));
    // Serial.print(" ");
    // Serial.println(temperature);

    // Turn servo only for 5° delta
    if ( abs(oldDrawing - drawing) > 5  ) {
      lcd.print(" x");
      delay(500);
      myservo.attach(10);
      angle =  drawing * 90 / maxDrawing * servoCalibration ;
      myservo.write(angle);
      delay(500);
      myservo.detach();

      oldPotentio = potentio;
      oldDrawing =  drawing;
    }
    delay(1500);
  }

}