#include <ESP32Servo.h>
int distance;
long duration;
Servo myservo;
void setup() {
  pinMode(23,OUTPUT);
  pinMode(22,OUTPUT);
  pinMode(14,OUTPUT);
  pinMode(21, INPUT);
  Serial.begin(9600);
  myservo.attach(19);
  analogReadResolution(10);
}
void loop() {
  int distance;
  long duration;
   int dist;
   int x=digitalRead(21);
  digitalWrite(14,LOW);
  digitalWrite(23, LOW);
  delayMicroseconds(2);
  digitalWrite(23, HIGH);
  delayMicroseconds(10);
  digitalWrite(23, LOW);
  duration=pulseIn(22,HIGH);
  distance=duration*0.034/2;
  if(x==1 &&  distance>=10)
  {
  Serial.println("Object detected");
  myservo.write(90);
  Serial.println("BIN OPEN");
  delay(2000); 
  }
else
{
  Serial.println("Object not detected");
  myservo.write(0);
  Serial.println("Dustbin is close");
  Serial.println("distance:");
  dist=100-distance;
  Serial.print(dist);
  Serial.println("% dustbin full");
  if(distance<=10){
    Serial.println("Dustbin is already full,Can't be open");
    digitalWrite(14,HIGH);
  }
  delay(2000);
}
}