// Include necessary libraries

#define POT_PIN 34   // Potentiometer connected to analog pin 34
#define BUTTON_PIN 25 // Push button connected to GPIO 25

const int ledCount = 10;
int ledPins[] = {
  2, 4, 5, 12, 13, 14, 18, 19, 21,22
}; 
void setup() {
  // Initialize LED pins as output
  for (int thisLed = 0; thisLed < ledCount; thisLed++) {
    pinMode(ledPins[thisLed], OUTPUT);
    digitalWrite(ledPins[thisLed], LOW);

  }

  // Initialize button as input with pull-up resistor
  pinMode(BUTTON_PIN, INPUT);

  // Initialize Serial for debugging
  Serial.begin(115200);
}

void loop() {
  // Check if button is pressed
  if (digitalRead(BUTTON_PIN) == HIGH) {
    
    // Read potentiometer value
    int potValue = analogRead(POT_PIN);

    // Map potentiometer value to LED count
    int ledLevel = map(potValue, 0, 4095, 0, ledCount);

   for (int thisLed = 0; thisLed < ledCount; thisLed++) {
    // if the array element's index is less than ledLevel,
    // turn the pin for this element on:
    if (thisLed < ledLevel) {
      digitalWrite(ledPins[thisLed], HIGH);
    }
    // turn off all pins higher than the ledLevel:
    else {
      digitalWrite(ledPins[thisLed], LOW);
    }
   }
  }
  else{
    for (int thisLed = 0; thisLed < ledCount; thisLed++) {
       digitalWrite(ledPins[thisLed], LOW);

  }
  }

  delay(100); // Small delay for debouncing and smooth updates
}