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

LiquidCrystal_I2C lcd(0x27, 16, 2);
#define potPin A0  // Potentiometer pin
#define switchPin 2 // Digital pin for the switch

bool switchState = HIGH; // Assuming HIGH when not pressed
bool lastSwitchState = HIGH;
unsigned long lastDebounceTime = 0;
unsigned long debounceDelay = 50;

void setup() {
  Serial.begin(115200);
  lcd.init();
  lcd.backlight(); // Turn on the backlight
  lcd.clear();
  pinMode(switchPin, INPUT_PULLUP); // Enable internal pull-up resistor for the switch
  Serial.println("LCD initialized");
}

void loop() {
  // Read switch state with debouncing
  int reading = digitalRead(switchPin);
  if (reading != lastSwitchState) {
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    if (reading != switchState) {
      switchState = reading;

      // Clear the LCD before updating
      lcd.clear();

      // Display switch state on LCD
      lcd.setCursor(0, 0);
      lcd.print("Switch: ");
      lcd.print(switchState == HIGH ? "OFF" : "ON");

      // Display potentiometer value on LCD
      int potValue = analogRead(potPin);
      lcd.setCursor(0, 1);
      lcd.print("Pot Value: ");
      lcd.print(potValue);
    }
  }

  lastSwitchState = reading;
  delay(50);
}