// ESP32 + Potentiometer + LED
// Middle pin of potentiometer -> GPIO34
// LED (positive) -> GPIO2, LED (negative) -> GND

int potPin = 34;   // Analog input pin
int ledPin = 2;    // LED output pin

int potValue = 0;
int scaledValue = 0;

void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
  Serial.println("Potentiometer with LED Control Started...");
}

void loop() {
  potValue = analogRead(potPin);                  // Read analog input (0–4095)
  scaledValue = map(potValue, 0, 4095, 0, 255);   // Convert to 0–255 range

  Serial.print("Pot Value (0–255): ");
  Serial.println(scaledValue);

  // If potentiometer value > 100, turn ON LED
  if (scaledValue > 100) {
    digitalWrite(ledPin, HIGH);   // LED ON
  } else {
    digitalWrite(ledPin, LOW);    // LED OFF
  }

  delay(500); // Wait half a second
}