void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(23,OUTPUT);
}

void loop() {
   // put your main code here, to run repeatedly:
  int x = 0;
  x = analogRead(4);
  //x = map(x,0,4095,0,100);
  Serial.print("Value = ");
  Serial.println(x);
  
  analogWrite(23,x);
  delay(100); 
}