#include <ESP32Servo.h>
Servo myservo;
const int T=14;
const int E=32;
long duration;
int distance;
int percentageFull;

void setup() 
{
  Serial.begin(9600);
  myservo.attach(4);
  pinMode(25,INPUT);
  pinMode(T,OUTPUT);
  pinMode(E,INPUT);
  pinMode(2, OUTPUT);
}

void loop() 
{
  digitalWrite(T,LOW);
  delayMicroseconds(2);
  digitalWrite(T, HIGH);
  delayMicroseconds(10);
  digitalWrite(T,LOW);
  int x=digitalRead(25);
  duration=pulseIn(E,HIGH);
  distance=(duration*0.034)/2;

  percentageFull = 100 - distance;


  if(x==1 && distance>10)
  {
  myservo.write(0);
  Serial.println("Dustbin Open");
  delay(5000);
  }
  else if(x==1 && distance<=10)
  {
    myservo.write(90);
    Serial.print("Dustbin is ");
    Serial.print(percentageFull);
    Serial.println("% full");
    digitalWrite(2, HIGH);
    delay(1000);
    digitalWrite(2, LOW);
    delay(1000);
  }
  else
  {
  myservo.write(90);
  Serial.println("Dustbin Closed");
  delay(1000);
  }
}