#include <WiFi.h>
#include <WiFiClient.h>
#include <ThingSpeak.h>
#include <BlynkSimpleEsp32.h>

char ssid[] = "pto"; // Your Wi-Fi network name
char pass[] = ""; // Your Wi-Fi password
const char *thingSpeakApiKey = "K896BZRETYQY124W";
const char *thingSpeakChannelID = "2320590";

int duration1 = 0;
int distance1 = 0;
int duration2 = 0;
int distance2 = 0;

#define LED 2
#define PIN_TRIG1 15
#define PIN_ECHO1 14
#define PIN_TRIG2 13
#define PIN_ECHO2 12

BlynkTimer timer;
WiFiClient client;

char auth[] = "Your_Blynk_Auth_Token";
const char *blynkServer = "blynk.cloud";
const int blynkPort = 8080;

int entered = 0;
int left = 0;
int inside = 0;

void setup() {
  Serial.begin(115200);

  // Connect to Wi-Fi
  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");

  // Initialize ThingSpeak
  ThingSpeak.begin(client);

  // Initialize Blynk
  Blynk.begin(auth, blynkServer, blynkPort);

  pinMode(LED, OUTPUT);
  pinMode(PIN_TRIG1, OUTPUT);
  pinMode(PIN_ECHO1, INPUT);
  pinMode(PIN_TRIG2, OUTPUT);
  pinMode(PIN_ECHO2, INPUT);

  timer.setInterval(1000L, myTimer);
}

void loop() {
  Blynk.run();
  timer.run();

  // Calculate distance1 and distance2 here
  duration1 = get_distance1();
  duration2 = get_distance2();

  // Send data to ThingSpeak
  ThingSpeak.writeField(thingSpeakChannelID, 1, distance1, thingSpeakApiKey);
  ThingSpeak.writeField(thingSpeakChannelID, 2, distance2, thingSpeakApiKey);

  // Delay for sending data to ThingSpeak
  delay(15000);
}

long get_distance1() {
  // Start a new measurement:
  digitalWrite(PIN_TRIG1, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG1, LOW);

  // Read the result:
  duration1 = pulseIn(PIN_ECHO1, HIGH);
  distance1 = duration1 / 58;
  return distance1;
}
  // Measure distance from sensor 1 and return the distance in centimeters
  // ...
long get_distance2() {
  digitalWrite(PIN_TRIG2, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG2, LOW);

  // Read the result:
  duration2 = pulseIn(PIN_ECHO2, HIGH);
  distance2 = duration2 / 58;
  return distance2;
}// Measure distance from sensor 2 and return the distance in centimeters
  // ...

  return distance2;
}

void myTimer() {
  Serial.println("100");
  int dis_new1 = get_distance1();
  int dis_new2 = get_distance2();

  if (distance1 != dis_new1 || distance2 != dis_new2) {
    Serial.println("200");
    if (distance1 < distance2) {
      Serial.println("Enter loop");
      entered = entered + 1;
      inside = inside + 1;
      digitalWrite(LED, HIGH);
      Blynk.virtualWrite(V0, entered);
      Blynk.virtualWrite(V2, inside);
      distance1 = dis_new1;
      delay(1000);
      digitalWrite(LED, LOW);
    }
    if (distance1 > distance2) {
      Serial.println("Leave loop");
      left = left + 1;
      inside = inside - 1;
      Blynk.virtualWrite(V1, left);
      Blynk.virtualWrite(V2, inside);
      distance2 = dis_new2;
      delay(1000);
    }
  }
}