#define BLYNK_TEMPLATE_ID "TMPL350dy52xP"
#define BLYNK_TEMPLATE_NAME "EV Battery Monitoring"
#define BLYNK_AUTH_TOKEN "r10NzS0ar9LTjT3OxUEYd_-2ACBSlvgk"

#include <LiquidCrystal.h>
#include <BlynkSimpleEsp8266.h>
#include <ESP8266WiFi.h>

// Define pins
#define TRIGGER_PIN1 2
#define ECHO_PIN1 3
#define TRIGGER_PIN2 4
#define ECHO_PIN2 5
#define OUTPUT_PIN1 6
#define OUTPUT_PIN2 7

#define DISTANCE_THRESHOLD 10 // Distance threshold in cm

LiquidCrystal lcd(8, 9, 10, 11, 12, 13);

// Replace with your Blynk Auth Token
char auth[] = "YourAuthToken";
// Replace with your WiFi credentials
char ssid[] = "YourNetworkName";
char pass[] = "YourPassword";

void setup() {
  // Initialize Serial for debugging
  Serial.begin(9600);

  // Initialize pins
  pinMode(TRIGGER_PIN1, OUTPUT);
  pinMode(ECHO_PIN1, INPUT);
  pinMode(TRIGGER_PIN2, OUTPUT);
  pinMode(ECHO_PIN2, INPUT);
  pinMode(OUTPUT_PIN1, OUTPUT);
  pinMode(OUTPUT_PIN2, OUTPUT);

  // Initialize LCD
  lcd.begin(16, 2);
  lcd.print("Slot-1 off");
  lcd.setCursor(0, 1);
  lcd.print("Slot-2 off");

  // Initialize Blynk
  Blynk.begin(auth, ssid, pass);
}

void loop() {
  Blynk.run(); // Run Blynk

  float duration1, distance1, duration2, distance2;

  // Sensor 1
  digitalWrite(TRIGGER_PIN1, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIGGER_PIN1, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIGGER_PIN1, LOW);
  duration1 = pulseIn(ECHO_PIN1, HIGH);
  distance1 = (duration1 / 2.0) / 29.1; // Calculate distance in cm

  // Sensor 2
  digitalWrite(TRIGGER_PIN2, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIGGER_PIN2, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIGGER_PIN2, LOW);
  duration2 = pulseIn(ECHO_PIN2, HIGH);
  distance2 = (duration2 / 2.0) / 29.1; // Calculate distance in cm

  // Update Slot-1 status
  if (distance1 < DISTANCE_THRESHOLD) {
    lcd.setCursor(0, 0);
    lcd.print("Slot-1 charging");
    digitalWrite(OUTPUT_PIN1, HIGH);
    Blynk.virtualWrite(V1, "Slot-1 charging");
  } else {
    lcd.setCursor(0, 0);
    lcd.print("Slot-1 off     ");
    digitalWrite(OUTPUT_PIN1, LOW);
    Blynk.virtualWrite(V1, "Slot-1 off");
  }

  // Update Slot-2 status
  if (distance2 < DISTANCE_THRESHOLD) {
    lcd.setCursor(0, 1);
    lcd.print("Slot-2 charging");
    digitalWrite(OUTPUT_PIN2, HIGH);
    Blynk.virtualWrite(V2, "Slot-2 charging");
  } else {
    lcd.setCursor(0, 1);
    lcd.print("Slot-2 off     ");
    digitalWrite(OUTPUT_PIN2, LOW);
    Blynk.virtualWrite(V2, "Slot-2 off");
  }

  delay(1000); // Adjust delay as needed for your application
}