void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(27, OUTPUT);
  pinMode(14, INPUT);
}

void loop() {
  
  int volt = analogRead(14);
  int intensity = map(volt,0,4095,0,255);
  analogWrite(27,intensity);
  Serial.println("volt : "+String(volt));
  Serial.println("intensity : "+String(intensity));
  
  delay(1000); // this speeds up the simulation
}