#define BLYNK_TEMPLATE_ID "TMPL6xxHPEtRT"
#define BLYNK_TEMPLATE_NAME "pest control"
#define BLYNK_AUTH_TOKEN "C-vVAHXMb5aJwxJ4Jzndet-Tq5TSFcFD"
#define BLYNK_PRINT Serial

#define ECHO_PIN 12
#define TRIG_PIN 13
#define BUZZ_PIN 15

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

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

int volume_pitch[] = {0, 50, 100, 150, 200, 250, 300, 350, 400};
int volume;

BlynkTimer timer;

BLYNK_WRITE(V0){
  int pin_value = param.asInt();

  volume = volume_pitch[pin_value];
}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(BUZZ_PIN, OUTPUT);

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

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

  // Read the result:
  float duration = pulseIn(ECHO_PIN, HIGH);

  return duration/58;
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(100); // this speeds up the simulation
  // Serial.println(readUltrasonicDistance());
  float distance = readUltrasonicDistance();

  Blynk.run();
  timer.run();

  if(distance < 200) {
    tone(BUZZ_PIN, volume, 100);
    Serial.println("Dekat");
    Blynk.virtualWrite(V1, "ADA");
  }else{
    noTone(BUZZ_PIN);
    Serial.println("Jauh");
    Blynk.virtualWrite(V1, "TIDAK ADA");
  }
}