#include <Servo.h>
//https://wokwi.com/projects/339227323398095442
#include <TM1637.h>

const float BETA = 3950;
const int CLK = 9;
const int DIO = 8;

TM1637 tm(CLK, DIO);
Servo myservo;

int pos = 0;

void setup() {
  tm.init();
  tm.set(BRIGHT_TYPICAL);
  // put your setup code here, to run once:
  Serial.begin(9600);
  myservo.attach(3);    //connected at PWM 3
  pinMode(A1, OUTPUT);
  pinMode(A2, OUTPUT);

}
unsigned int counter = 0;

void loop() {
  // put your main code here, to run repeatedly:
  int analogValue = analogRead(A0);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  counter = (int)celsius;

  //display temp
  tm.display(0, (counter / 100) % 10);
  tm.display(1, (counter / 10) % 10);
  tm.display(2, (counter / 1) % 10);
  tm.display(3, counter % 10);

  if(celsius > 23.9){
   // Serial.print("Temperature: ");
    Serial.print(celsius);
    Serial.println(" ℃");
    digitalWrite(A1, HIGH);
    digitalWrite(A2, LOW);
    //open the window
    pos = 180;
    myservo.write(pos);              // tell servo to go to position in variable 'pos'                      
    delay(250);
  }
  else{
    digitalWrite(A2, HIGH);
    digitalWrite(A1, LOW);
    //Serial.print("Temperature: ");
    Serial.print(celsius);
    Serial.println(" ℃");
    //close window
    pos = 90;
    myservo.write(pos);              // tell servo to go to position in variable 'pos'                      
    delay(250);
  }
  delay(1000);
}