int potPin = 34;
int potvalue = 0;
int a=2;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(a, OUTPUT);
  //Serial.println("Hello, ESP32!");
}

void loop() {
  potvalue =analogRead(potPin);
  int b =map(potvalue,0,4095,0,255);
  analogWrite(a,b);
  Serial.println(potvalue);
  // put your main code here, to run repeatedly:
  delay(100); // this speeds up the simulation
}