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

LiquidCrystal_I2C lcd(0x27, 16, 2); // Adjust the address to 0x27 or 0x3F if needed

const int moisturePins[4] = {A0, A1, A2, A3};
int moistureReadings[4];
int avgMoisture;

void setup() {
  Serial.begin(9600);
  lcd.begin(16, 2);
  lcd.backlight();
}

void loop() {
  int totalMoisture = 0;
  
  // Read and map each moisture sensor value to percentage
  for (int i = 0; i < 4; i++) {
    moistureReadings[i] = analogRead(moisturePins[i]);
    int moisturePercentage = map(moistureReadings[i], 0, 1023, 100, 0); // Map to 0-100%, adjust if needed
    totalMoisture += moisturePercentage;
  }
  
  // Calculate average moisture as percentage
  avgMoisture = totalMoisture / 4;
  
  // Display average moisture percentage on LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Avg Moisture:");
  lcd.setCursor(0, 1);
  lcd.print(avgMoisture);
  lcd.print("%");

  // Send average moisture as percentage to S Arduino
  Serial.write(avgMoisture);
  
  delay(1000); // Update every second
}