void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(4, INPUT);//potentio
  pinMode(26, OUTPUT);//led
}

void loop() {
  int v = analogRead(4);
  //Serial.println(v);
  int intensity=map(v,0,4090,0,250);
  Serial.println(intensity);
  analogWrite(26,intensity);
  delay(100);
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}