#include <Wire.h> 
#include <LiquidCrystal_I2C.h> // Library for I2C LCD
#include <Servo.h>             // Library for Servo Motor
#include <HX711.h>             // Library for Load Cell

#define PIR_PIN 2              // PIR sensor pin
#define SERVO_PIN 5            // Servo motor pin
#define LOADCELL_DOUT_PIN  3   // Load cell data pin
#define LOADCELL_SCK_PIN  4    // Load cell clock pin

LiquidCrystal_I2C lcd(0x27, 16, 2); // Address for I2C LCD
Servo servo;
HX711 scale;

void setup() {
  pinMode(PIR_PIN, INPUT);
  servo.attach(SERVO_PIN);
  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
  lcd.init();
  lcd.backlight(); // Turn on the backlight of the LCD
  servo.write(0); // Initial position for servo
}

void loop() {
  int sensorValue = digitalRead(PIR_PIN);

  
    long weight = scale.read(); // Read the weight from the load cell
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Weight: ");
    lcd.print(weight);
    lcd.print("g");

    
    if (weight < 1500) {
      if(sensorValue==HIGH){
      servo.write(90); // Turn servo to 90 degrees
    } 
    }
    else{
      if(sensorValue==HIGH){
      servo.write(0);}
    }
 // Adjust delay as needed
  
}