const int ledPin= 15;
const int potPin= 13;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
   
  delay(1500);
}

void loop() {
  
  int value = analogRead(potPin);
  int  v=map(value,0,4000,0,400);
 // analogWrite(ledPin,50);
  if(v>3500){
    digitalWrite(ledPin, HIGH);
  }
  else{
     digitalWrite(ledPin, LOW);
  }
  delay(10); // this speeds up the simulation
  Serial.println("Value: "+String(v));

  delay(1000);
}