#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int potPin = 35;

int potValue = 0;

void setup() {
  
  Serial.begin(115200);

  // Initialize the I2C LCD
  lcd.init();
  lcd.backlight();
  
  // Display initial message
  lcd.setCursor(0, 0);
  lcd.print("Potentiometer");
  lcd.setCursor(0, 1);
  lcd.print("Test with ESP32");
  delay(2000);
  lcd.clear();
}

void loop() {
  potValue = analogRead(potPin);

  // Clear the previous content on the LCD
  // lcd.clear();

  // Display the potentiometer value
  lcd.setCursor(0, 0);
  lcd.print("Pot Value: ");
  lcd.print(potValue);

  // Map the raw value to a percentage (0 to 100%)
  int percentage = map(potValue, 0, 4095, 0, 100);
  lcd.setCursor(0, 1);
  lcd.print("Percentage: ");
  lcd.print(percentage);
  lcd.print(" %");

  // Print to Serial Monitor for debugging
  Serial.print("Potentiometer Value: ");
  Serial.print(potValue);
  Serial.print(" | Percentage: ");
  Serial.println(percentage);

  delay(500);
}