#define led_g 2
#define led_y 3
#define led_r 4
#define temp A1 


void setup() {
 pinMode(led_g, OUTPUT);
 pinMode(led_y, OUTPUT);
 pinMode(led_r, OUTPUT);
 pinMode(temp, INPUT);
Serial.begin(115200);
}

void loop() {

  const float BETA = 3950; // should match the Beta Coefficient of the thermistor
int analogValue = analogRead(temp);
float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
 
 {if (celsius >= 10 && celsius <= 15){
  digitalWrite(led_g, HIGH);
 }
 else (celsius < 10 && celsius > 15);
  digitalWrite(led_g, LOW);
 }
 {if (celsius > 15 && celsius <= 20){
  digitalWrite(led_y, HIGH);
 }
 else (celsius < 15 && celsius > 20);
  digitalWrite(led_y, LOW);
  }
  {if (celsius > 20){
    digitalWrite(led_r, HIGH);
  }
  else (celsius < 20);
  digitalWrite(led_r, LOW);}
  Serial.print("AnalogValue  ");
  Serial.println(analogValue);
  //delay(1000);
  Serial.print("Temperarura  ");
  Serial.println(celsius);
}