/**
  Projeto Janela Automática
  Quando a temperatura chega abaixo de 19 Graus a janela fecha,
  se estiver acima ou igual a 19 Graus ela abre.
  Zion team
*/

#include <Servo.h>

Servo myservo;  // create servo object to control a servo

int val;    // variable to read the value from the analog pin

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

void setup() {
  Serial.begin(9600);
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
}

void loop() {
  int analogValue = analogRead(A0);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  Serial.print("Temperature: ");
  Serial.print(celsius);
  Serial.println(" ℃");
  delay(1000);

  if (celsius < 19) {
     myservo.write(180);              // tell servo to go to position in variable 'pos'
     delay(15); 
  }

  if (celsius >= 19) {
     myservo.write(0);              // tell servo to go to position in variable 'pos'
     delay(15); 
  }

}