/*
  Activity 5: Potentiometer LED Control
  Purpose: Control the LED brightness using a potentiometer
  Reads analog value from potentiometer (0-4095)
  Maps it to PWM brightness (0-255)
  Creates smooth brightness adjustment
  
  Components:
  - ESP32 Dev Module
  - Potentiometer connected to GPIO 34
  - LED connected to GPIO 18
  - 10kΩ resistor for voltage divider
*/

#define POT 34
#define LED 18

void setup() {
  Serial.begin(115200);
  pinMode(LED, OUTPUT);
}

void loop() {
  int valorPot = analogRead(POT);   // ESP32 reads from 0 to 4095
  int brillo = map(valorPot, 0, 4095, 0, 255);
  analogWrite(LED, brillo);
  
  Serial.print("Potentiometer: ");
  Serial.print(valorPot);
  Serial.print(" | Brightness: ");
  Serial.println(brillo);
  delay(50);
}