// the number of the LED pin
const int ledPin = 21; // 5 corresponds to GPI21


// setting PWM properties
const int freq = 5000;      //Freq off PWM
const int ledChannel = 0;  // Led chanel selected 0-15
const int resolution = 8;  // Resolution - 1-20 bits
// The number of slide switch pin & aux to store value
const int bot = 12;
int b = 0;
// the number of Pot pin & aux store value 
int Pot = 4;
int p = 0;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  // configure LED PWM functionalitites
  ledcSetup(ledChannel, freq, resolution);
  // attach the channel to the GPI0 to be controlled
  ledcAttachPin(ledPin, ledChannel);
  pinMode(Pot, INPUT);
  pinMode(bot, INPUT);

  Serial.println("Hello, ESP32!");
}
void loop()
{   
  /*
  // increase the LED brightness
  for (int dutyCycle = 0; dutyCycle <= 255; dutyCycle++) 
  {
    // changing the LED brightness with PWM
    ledcWrite(ledChannel, dutyCycle);
  delay(50);                     
  } // decrease the LED brightness
  ledcWrite(ledChannel, 0);
  delay(2000);
  // decrease the LED brightness
    for (int dutyCycle = 255; dutyCycle  >= 255; dutyCycle−−) 
    {
      // changing the LED brightness with PWM
      ledcWrite(ledChannel, dutyCycle);
      delay(10);
    }
    delay(1000)
    */
    p = analogRead(Pot);
    delay(25);
    Serial.print("Pot");Serial.print(p);
    int conv = map(p, 0, 4095, 0, 225);
     Serial.print("conv:");Serial.println(conv);
     ledcWrite(ledChannel, conv);
  }