#define CLK 2
#define DT 3
#define SW_BTN 4
#define R_PIN 7

int lastClick = HIGH;
int temp =0;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(CLK, INPUT);
  pinMode(DT, INPUT);
  pinMode(SW_BTN, INPUT_PULLUP);
  pinMode(R_PIN, OUTPUT);
}

void loop() {
  int celsius = readTemp();
  
  int newClick = digitalRead(CLK);
  if(newClick != lastClick){
    lastClick = newClick;
    int dtVal = digitalRead(DT);
    if(newClick == LOW && dtVal == HIGH){
      temp++;
      Serial.println(temp);
    }
    if(newClick == LOW && dtVal == LOW){
      temp--;
      Serial.println(temp);
    }
    delay(50);
  }
  // Serial.println(digitalRead(SW_BTN));
  if(digitalRead(SW_BTN) == LOW){
    digitalWrite(R_PIN, HIGH);
    Serial.println("activated!!");
  }else{
    digitalWrite(R_PIN, LOW);
  }
}

int readTemp(){
  const float BETA = 3950; // should match the Beta Coefficient of the thermistor
  int analogValue = analogRead(A0);
  int celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;  
  // Serial.println(celsius);
  return celsius;
}