#define BLYNK_TEMPLATE_ID "TMPL3G3SA0Wv2"
#define BLYNK_TEMPLATE_NAME "Public Transport"
#define BLYNK_AUTH_TOKEN "rKVxg64sD0M4Rrk35cw_K_TZam47baQW"

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

#define t 12
#define e 14
BlynkTimer timer;

int d=0;
int c=0;
int a1=0;
int a2=0;
int a3=0;

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";   // your network SSID (name)
char pass[] = "";
#define BLYNK_PRINT Serial

void setup() {
  Serial.begin(115200);
  pinMode(t, OUTPUT);
  pinMode(e, INPUT);
  Blynk.begin(auth, ssid, pass, "blynk.cloud", 8080);
}

void loop() {
  /*int t1 = digitalRead(t);
  int e1 = digitalRead(e);*/

  digitalWrite(t, HIGH);
  delayMicroseconds(10);
  digitalWrite(t, LOW);

  // Read the result:
  d = pulseIn(e, HIGH);
  d = d / 58;
  
  if (d >= 100) {
    c=c+1;
  } else if (c != 0){
      c=c-1;
  } else{
      c=0;
      }
  Serial.print("\n\n=============================");
  Serial.print("\nNo of vehicles Passed\t");
  Serial.println(c);
  //predicting the traffic of next junction
  //with number of current junction vehicles
  if (c<10){
      Serial.print("Happy Journey");
      a1=0;
      a2=1;
      Blynk.virtualWrite(V0, c);
      Blynk.virtualWrite(V1, a1);
      Blynk.virtualWrite(V2, a2);
    }
  if (c>=10){
      Serial.print("Chance of increase in traffic");
      a1=1;
      a2=0;
      Blynk.virtualWrite(V0, c);
      Blynk.virtualWrite(V1, a1);
      Blynk.virtualWrite(V2, a2);
    }
  delay(1000);
  Blynk.run();
  }