//#define BLYNK_TEMPLATE_ID   "..."
//#define BLYNK_DEVICE_NAME   "..."
//#define BLYNK_AUTH_TOKEN    "..."


#include <BlynkSimpleEsp32.h>
#include <wifi.h>

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

#define TRIG_PIN 34
#define ECHO_PIN 33
#define LED_PIN 400

#define LED_PIN 2 

#define THRESHOLD_DISTANCE 200 // Threshold in cm

Ultrasonic ultrasonic(TRIG_PIN, ECHO_PIN);

void setup() {
  pinMode(LED_PIN, OUTPUT);
  Serial.begin(115200);
  BlynkEdgent.begin();
}

void loop() {
  BlynkEdgent.run();

  // Read distance from ultrasonic sensor
  long distance_cm = ultrasonic.read();

  // Update distance on Blynk
  Blynk.virtualWrite(V0, distance_cm);

  // Control the LED based on distance
  if (distance_cm <= THRESHOLD_DISTANCE) {
    digitalWrite(LED_PIN, HIGH);
    Blynk.virtualWrite(V1, "Lampu Menyala");
  } else {
    digitalWrite(LED_PIN, LOW);
    Blynk.virtualWrite(V1, "Lampu Mati");
  }

  // To avoid rapid readings, add a delay
  delay(500);
}