#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);

const int ledPin = 2;     // LED pin

void setup()
{
  Wire.begin(23, 22); // Initialize the I2C communication with SDA pin 23 and SCL pin 22.
  Serial.begin(9600); /// Initialize the serial communication at a baud rate of 9600 bits per second.
  lcd.init();       // initialize the lcd 
  lcd.backlight();    // turn on the backlight
  pinMode(ledPin, OUTPUT); 
}

void loop()
{
  int16_t i = analogRead(34);
  // Use the ternary operator to determine the status based on the value of 'i'.
  // If 'i' is less than 20, set 'msg' to "low"; if 'i' is between 20 and 50, set 'msg' to "ok"; if 'i' is greater than 80, set 'msg' to "high".
  String msg = (i < 20) ? "low" : (i > 80) ? "high" : "ok";

  lcd.clear();
  lcd.print("pH Level: ");
  lcd.print(msg);
  if(i<=300){
  digitalWrite(ledPin, HIGH); // will turn on the LED(motor) if the soil is dry (i<300)
  }
  else {
  digitalWrite(ledPin, LOW);
  }

  lcd.setCursor(0, 1);  // Set cursor to the first column and second row
  lcd.print("SensorValue:");
  lcd.print(i);

  delay(500); 

}