#include <Servo.h>
#include <Ultrasonic.h>
#include <SIM800L.h>

const int pirPin = 13; // Pin for PIR sensor
const int moisturePin = 19; // Pin for moisture sensor
const int servoPin1 = 18; // Pin for servo motor 1
const int servoPin2 = 15; // Pin for servo motor 2
const int trigPin1 = 14; // Trig pin for ultrasonic sensor 1
const int echoPin1 = 27; // Echo pin for ultrasonic sensor 1
const int trigPin2 = 12; // Trig pin for ultrasonic sensor 2
const int echoPin2 = 26; // Echo pin for ultrasonic sensor 2
const char* phoneNumber = "1234567890"; // Phone number to send SMS to

Servo servo1; // Initialize servo motor 1
Servo servo2; // Initialize servo motor 2
Ultrasonic ultrasonic1(trigPin1, echoPin1); // Initialize ultrasonic sensor 1
Ultrasonic ultrasonic2(trigPin2, echoPin2); // Initialize ultrasonic sensor 2
SIM800L sim800l; // Initialize SIM800L module

void setup() {
  Serial.begin(115200); // Initialize serial communication
  pinMode(pirPin, INPUT); // Set PIR sensor pin as input
  servo1.attach(servoPin1); // Attach servo motor 1 to pin
  servo2.attach(servoPin2); // Attach servo motor 2 to pin
  sim800l.begin(); // Initialize SIM800L module
}

void loop() {
  // Read value from PIR sensor
  int pirValue = analogRead(pirPin); // Read analog value from PIR sensor

  if (pirValue > 50) { // If PIR sensor value is above 50
    // Read value from moisture sensor
    int moistureValue = analogRead(moisturePin); // Read analog value from moisture sensor

    if (moistureValue > 60) { // If moisture sensor value is above 60
      servo1.write(90); // Turn servo motor 1 to 90 degrees
      delay(3000); // Delay for 3 seconds
      servo1.write(0); // Return servo motor 1 to initial position
    } else {
      servo2.write(90); // Turn servo motor 2 to 90 degrees
      delay(3000); // Delay for 3 seconds
      servo2.write(0); // Return servo motor 2 to initial position
    }
  }

  // Read values from ultrasonic sensors
  long distance1 = ultrasonic1.read(); // Read distance from ultrasonic sensor 1
  long distance2 = ultrasonic2.read(); // Read distance from ultrasonic sensor 2

  if (distance1 == 100 || distance2 == 100) { // If either ultrasonic sensor reads 100 cm
    sim800l.sendSMS(phoneNumber, "Ultrasonic sensor reading is 100 cm!"); // Send SMS message
  }

  delay(1000); // Delay for 1 second
}