#define BLYNK_TEMPLATE_ID "TMPL6tDc_WYHI"
#define BLYNK_TEMPLATE_NAME "Keamanan Pintu"
#define BLYNK_AUTH_TOKEN "_EkIC6enYr4p8pnQkorm8vpqRxGjtgcU"

#define TRIGGER_PIN 5
#define ECHO_PIN 4
#define tombol_1 18
#define relay 19
#define buzzer 15

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

int SW_relay = 0;
int SW_buzzer = 0;
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";


BLYNK_WRITE(V0)
{
  SW_relay = param.asInt();
  if (SW_relay ==1){
    digitalWrite(19, HIGH);
    Serial.println("Terbuka");
    Blynk.virtualWrite(V0, HIGH);
    delay(1000);
  }
  else{
    digitalWrite(19, LOW);
    Serial.println("Terkunci");
    Blynk.virtualWrite(V0, LOW);
    delay(1000);
  }
}

BLYNK_CONNECTED() { 
  Blynk.syncAll();
}


void setup() {
  Blynk.begin(auth, ssid, pass);
  Serial.begin(115200);
  pinMode(TRIGGER_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(tombol_1, INPUT);
  pinMode(relay, OUTPUT);
}

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

  long duration = pulseIn(ECHO_PIN, HIGH);
  float distance = (duration * 0.0343) / 2;
   if(distance<10){ 
    Serial.print("Ada orang ");
    Blynk.logEvent("ultrasonik","Ada orang didepan pintu.....");
    digitalWrite(buzzer, HIGH);
    tone(buzzer, 200);
  }
  else if(distance>=10){
    digitalWrite(buzzer, LOW);
    noTone(buzzer);
  }
  if(digitalRead(tombol_1)==HIGH ) {
  SW_relay ++ ;
    Blynk.virtualWrite(V0, HIGH);
    digitalWrite(19, HIGH);
    Serial.println("Terbuka");
    delay(1000);
  }
  else {}
  
  if (digitalRead(tombol_1)==HIGH ) {
  SW_relay -- ;
    Blynk.virtualWrite(V0, LOW);
    digitalWrite(19, LOW);
    Serial.println("Terkunci");
    delay(1000);
  }
  else{}

  delay(1000);
  Blynk.run();
}