#define BLYNK_TEMPLATE_ID "TMPL6oxvRHX31"
#define BLYNK_TEMPLATE_NAME "Toucless help button"
#define BLYNK_AUTH_TOKEN "kyQGuD9jsgQ66cvQVYRUFyLNC8OqI7b8"


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

char auth[] = "kyQGuD9jsgQ66cvQVYRUFyLNC8OqI7b8" ; //Auth Token
char ssid[] = "Wokwi-GUEST"; //nama hotspot yang digunakan
char pass[] = ""; //password hotspot yang digunakan

#define Echo 15
#define Trig 2
#define Led 14

int jarak;
long waktu;

BlynkTimer timer;


void setup(){ 
  Serial.begin(115200);
  Blynk.begin(auth, ssid, pass);
  pinMode(Trig, OUTPUT);
  pinMode(Echo, INPUT);
  pinMode(Led, OUTPUT);
}

void loop () {
digitalWrite (Trig, LOW);
delayMicroseconds(2);
digitalWrite(Trig, HIGH);
delayMicroseconds(10);
digitalWrite(Trig, LOW);

waktu = pulseIn(Echo, HIGH);
jarak= waktu*0.034/2;


Serial.print("jarak= ");
Serial.println(jarak);


if (jarak <=10) {
digitalWrite(Led, HIGH);
Serial.print("Memanggil") ;
}
else { 
digitalWrite(Led, LOW);
Serial.print(" ");
}
Blynk.run();
timer.run();
delay(500);
}

void send_blynk(){
Blynk.virtualWrite(V0, jarak); 
if (jarak >= 10){
  Blynk.virtualWrite(V1, LOW); 
}
else { 
  Blynk.virtualWrite(V1, HIGH);
}
}