int t;
void setup() {
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(11, OUTPUT);
  Serial.begin(115200);
}

void loop() {
  t = map(analogRead(A0), 791, 351, 0, 40);
  Serial.println(t);
  delay(100);
  if (t <= 15){
    digitalWrite(4, LOW);
    digitalWrite(3, LOW);
    digitalWrite(2, HIGH);
    analogWrite(11, 50);
    delay(1000);
    digitalWrite(11, LOW);
    delay(1000);
    analogWrite(11, 50);
    delay(1000);
    digitalWrite(11, LOW);
    delay(3000);
  }
  if (t <= 20){
    digitalWrite(4, LOW);
    digitalWrite(3, LOW);
    digitalWrite(2, HIGH);
  }
  if ((t >= 20) && (t <= 25)){
    digitalWrite(4, LOW);
    digitalWrite(3, HIGH);
    digitalWrite(2, LOW);
  }
  if ((t > 25) && (t <= 30)) {
    Serial.println(123);
    digitalWrite(4, HIGH);
    digitalWrite(3, HIGH);
    digitalWrite(2, LOW);
  }
  if (t > 30) {
    digitalWrite(4, HIGH);
    digitalWrite(3, LOW);
    digitalWrite(2, LOW);
    analogWrite(11, 50);
    delay(500);
    digitalWrite(11, LOW);
    delay(2000);

  }
}