#include <ESP32Servo.h>

#define PIR 17
#define SERVO 16
#define SERVO_MIN 0
#define SERVO_MAX 90
#define trigp 18
#define echop 5
#define LED 2 // Changed to GPIO 2 for LED pin

Servo myservo; // Changed to myservo for consistency

void setup() {
  pinMode(trigp, OUTPUT);
  pinMode(echop, INPUT); // Changed to INPUT
  pinMode(LED, OUTPUT);
  pinMode(PIR, INPUT);
  Serial.begin(9600);
  myservo.attach(SERVO);
  analogReadResolution(10);
}

void loop() {
  int x = digitalRead(PIR);
  int duration; // Added duration variable declaration
  int distance;
  digitalWrite(LED, LOW);
  digitalWrite(trigp, LOW);
  delayMicroseconds(2);
  digitalWrite(trigp, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigp, LOW);
  duration = pulseIn(echop, HIGH);
  distance = duration * 0.034 / 2;

  if (x == HIGH && distance >= 10) { // Changed to x == HIGH to represent logic level
    Serial.println("OBJECT DETECTED");
    myservo.write(SERVO_MAX);
    Serial.println("BIN OPEN");
    delay(1000);
  } else {
    Serial.println("OBJECT NOT DETECTED");
    myservo.write(SERVO_MIN);
    
    Serial.print("distance: "); // Corrected the print statements
    Serial.print(distance); // Changed to print distance instead of 100-distance
    Serial.println(" cm");
    if (distance <= 10) {
      Serial.println("DUSTBIN is FULL/LID CANNOT BE OPEN");
      digitalWrite(LED, HIGH);
    }
    delay(1000);
  }
}