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

// Initialize the LCD, I2C address 0x27 is typical for 16x2 LCDs
LiquidCrystal_I2C lcd(0x27, 16, 2);

// Pin connections for the flex sensors
const int flexPin1 = A0;  // Flex sensor 1 connected to A0
const int flexPin2 = A1;  // Flex sensor 2 connected to A1

// Variable to store the previous message
String previousMessage = "";

void setup() {
  // Initialize the LCD
  lcd.begin(16,2);    // Initialize LCD with default dimensions
  lcd.backlight(); // Turn on the backlight

  // Initialize serial communication for debugging
  Serial.begin(9600);
}

void loop() {
  // Read the analog values from both flex sensors
  int flexValue1 = analogRead(flexPin1);
  int flexValue2 = analogRead(flexPin2);

  // Print the flex sensor values to the Serial Monitor (for debugging)
  Serial.print("Flex Sensor 1: ");
  Serial.print(flexValue1);
  Serial.print("  Flex Sensor 2: ");
  Serial.println(flexValue2);

  // Compare the values of the two flex sensors
  String currentMessage;
  if (flexValue1 > flexValue2) {
    currentMessage = "WATER";  // Message if Flex Sensor 1 is greater
  } else if (flexValue1 == flexValue2){
    currentMessage = "Move Your Fingers";
  }
  else {
    currentMessage = "FOOD";   // Message if Flex Sensor 2 is greater or equal
  }

  // Only update the LCD if the message has changed
  if (currentMessage != previousMessage) {
    lcd.clear();              // Clear the LCD
    lcd.setCursor(0, 0);      // Set cursor to the first row
    lcd.print(currentMessage); // Display the new message
    previousMessage = currentMessage;  // Update previousMessage to the current one
  }

  delay(500); // Small delay between readings
}