const float BETA = 3950;
const int REDPIN = 3;
const int GREENPIN = 2;
const int BLUEPIN = 1;
const int TEMPPIN = 28;
const int CLK = 27;
const int DT = 26;
int ledValue = 0;
float percent = 100;
float percentDecimal = 1;

void readEncoder() {
  int dtValue = digitalRead(DT);
  if (dtValue == HIGH) {
    if(percent <= 90){
      percent += 10;
      percentDecimal = percent/100;
    }
  }
  else{
    if(percent >= 10){
      percent -= 10;
      percentDecimal = percent/100;
    }
  }
}

void readEncoderButton(){

}

void setup() {
  // put your setup code here, to run once:
  Serial1.begin(115200);
  pinMode(REDPIN, OUTPUT);
  pinMode(BLUEPIN, OUTPUT);
  pinMode(GREENPIN, OUTPUT);
  pinMode(TEMPPIN, INPUT);
  pinMode(CLK, INPUT);
  pinMode(DT, INPUT);

  attachInterrupt(CLK, readEncoder, FALLING);

}


void loop() {
  int analogValue = analogRead(TEMPPIN);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  float fahrenheit = (celsius * 1.8) + 32;
  fahrenheit = constrain(fahrenheit, 0, 100);

  if(fahrenheit >= 0 && fahrenheit <= 51){
    ledValue = map(fahrenheit, 0, 50, 0, 255);
    analogWrite(REDPIN, 0);
    analogWrite(BLUEPIN, (255 - ledValue) * percentDecimal);
    analogWrite(GREENPIN, ledValue * percentDecimal);
  }
  else if(fahrenheit >= 52 && fahrenheit <= 101){
    ledValue = map(fahrenheit, 51, 100, 0, 255);
    analogWrite(BLUEPIN, 0);
    analogWrite(GREENPIN, (255 - ledValue) * percentDecimal);
    analogWrite(REDPIN, ledValue * percentDecimal);
  }

  delay(100);
}