#define BLYNK_PRINT Serial

#define BLYNK_TEMPLATE_ID "TMPL3PfaFYqc8"
#define BLYNK_TEMPLATE_NAME "IOT PROJECT"
#define BLYNK_AUTH_TOKEN "LSk4tM_RmLWlZ_ENInskBIhNsUF4hwLt"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <ESP32Servo.h>
#include <LiquidCrystal_I2C.h>



LiquidCrystal_I2C lcd(0x27, 16, 2);  
// sda 21
// scl 22
#define dePin 4									  
#define dtPin 16									 
#define lePin 5
#define ltPin	17								 
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
#define depth 200
BlynkTimer timer;
long duration_d; 
int distance_d = 200;
double percent;
long remaining;
long duration_l;
long distance_l;
Servo myservo;
int lidValue;

BLYNK_WRITE (V0){
  
}

BLYNK_WRITE (V1){
  lidValue = param.asInt();
  
}


void setup()
{
  	
	pinMode(dtPin,OUTPUT); 
	pinMode(dePin, INPUT); 

  pinMode(ltPin,OUTPUT); 
	pinMode(lePin, INPUT); 
	lcd.init();                   
  lcd.backlight();
  myservo.attach(19);
	pinMode(26, OUTPUT);
  pinMode(25, OUTPUT);
	Serial.begin(9600);
  myservo.write(0);
  Blynk.begin(auth, ssid, pass);
	timer.setInterval(1000, sendSensorData);
}

void loop()
{

  Blynk.run();

  lcd.setCursor(0, 0);
  digitalWrite(dtPin, LOW);
	delayMicroseconds(2); 
	digitalWrite(dtPin,HIGH); 
	delayMicroseconds(10); 
	digitalWrite(dtPin,LOW);  
  // sent pulse

	duration_d = pulseIn(dePin, HIGH);
	// pulseIn() waits for the pin to go from LOW to HIGH
	distance_d = duration_d * 0.0344 / 2; 

  	if(distance_d<40)
  	{
    	  digitalWrite(26, HIGH);
        digitalWrite(25, HIGH);
      	// tone(25, 500);
      	delay(500);
      	digitalWrite(26, LOW);
        digitalWrite(25, LOW);
      	// noTone(25);  
      	delay(500);  
  	}
  	else
    {
    	// noTone(25); 
      digitalWrite(25, LOW); 
  	}
  remaining = 400-distance_d;
  percent = ((double)remaining/400)*100;
  lcd.print(percent);

  digitalWrite(ltPin, LOW);
	delayMicroseconds(2); 
	digitalWrite(ltPin,HIGH); 
	delayMicroseconds(10); 
	digitalWrite(ltPin,LOW); 
  // sent pulse


	duration_l = pulseIn(lePin, HIGH); // time it takes for sound to reflet back
	distance_l = duration_l * 0.0344 / 2; 
  	if(distance_l<20)
  	{
    	myservo.write(90);
  	}
    
  	else
    {
    	
      if(lidValue == 1){
        myservo.write(90);
      }
      else{
        myservo.write(0);
      }
  	}

  

  timer.run();
  // digitalWrite(12, LOW);
  
}

void sendSensorData() {
  Blynk.virtualWrite(V0, percent); // Send percent data to V0
  if(percent>90){
		
     Blynk.logEvent("trash_bin_completely_filled", String("Trash Bin Completely Filled") + percent);
  }
}