#define setMode A0
#define setTemp A1
#define currentTemp A2

uint32_t nextEvent=0;
uint16_t set_Mode, set_Temp, celsius;
uint8_t eco_on = false;
const String mode_Name[] = {"OFF", "MAN", "ECO"};

const float BETA = 3950; // should match the Beta Coefficient of the thermistor

void setup() {
  // put your setup code here, to run once:
  Serial.begin(19200);
}

void loop() {
  // put your main code here, to run repeatedly:
  if (millis()-nextEvent > 11750) {
    set_Mode = map(analogRead(setMode),0,1023,0,3); // operation mode, one of: OFF, MAN(UAL), ECO
    set_Temp = map(analogRead(setTemp),0,1023,160,260);
    celsius = uint16_t((1 / (log(1 / (1023. / analogRead(currentTemp) - 1)) / BETA + 1.0 / 298.15) - 273.15)*10);

    switch (set_Mode) {
      case 0: // OFF, ignore temperature setpoint, use 10 °C
        set_Temp = 100;
        break;
      case 1: // MAN(UAL), uses the set_Temp value
        
        break;
      case 2: // ECO
        // drop through
      default:
        set_Temp = 170;
        if (eco_on) {
          set_Temp = 190;
        }
        break;
    }

    Serial.print("\nTemp setpoint ");
    Serial.print(set_Temp);
    Serial.print(" °C");
    Serial.print("\nMode ");
    Serial.print(mode_Name[set_Mode]);
    Serial.print("\nCurrent temp ");
    Serial.print(celsius,1);
    Serial.print(" °C");

    controller();

    nextEvent = millis();

  }
  
}

void controller() {

}