void setup() {
pinMode(A0,INPUT);
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
Serial.begin(9600);
}

void loop() {
   Serial.println(analogRead(A0));
   delay(250
   );
  if(analogRead(A0)>=0&&analogRead(A0)<160){
    digitalWrite(2,HIGH);
  }else { digitalWrite(2, LOW);}
  
  if(analogRead(A0)>171&&analogRead(A0)<508){
    digitalWrite(3,HIGH);
  }else { digitalWrite(3, LOW);}
  
  if(analogRead(A0)>508&&analogRead(A0)<853){
    digitalWrite(4,HIGH);
  }else { digitalWrite(4, LOW);}

  if(analogRead(A0)>853&&analogRead(A0)<1030){
    digitalWrite(5,HIGH);
  }else { digitalWrite(5, LOW);}

  
}