#define BLYNK_TEMPLATE_ID "TMPLPDy1xE6N"
#define BLYNK_TEMPLATE_NAME "Ketinggian Air"
#define BLYNK_AUTH_TOKEN "PWVxFtTp9BNcKwW8WBzVe_X9whzfRrbi"
#define ECHO_PIN 15
#define TRIG_PIN 4
#define vibrator 5
#define buzzer 18
int a = 0;
int b =0;
int indikator = 27;
#include <ESP32Servo.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
    char auth[] = BLYNK_AUTH_TOKEN;
    char ssid[] = "Wokwi-GUEST";
    char pass[] = "";
Servo myservo;
BlynkTimer timer;
 void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  pinMode(vibrator, OUTPUT);
  pinMode(indikator, OUTPUT);
Blynk.begin(auth, ssid, pass);
timer.setInterval(1000L, sendSensor);
myservo.attach(2);
myservo.write(0);
   Blynk.virtualWrite(V2, 0);
   Blynk.virtualWrite(V5, "Tertutup");
   Blynk.virtualWrite(V4, "Vibrator OFF");
   Blynk.virtualWrite(V0, "Buzzer OFF");
   Blynk.virtualWrite(V3, 0);
}
void loop() {
sendSensor();
Blynk.run();
timer.run();
}
BLYNK_WRITE(V2){
myservo.write(param.asInt());
int pinValue = param.asInt();
if (pinValue > 5) {
digitalWrite(vibrator, HIGH);
  Blynk.virtualWrite(V5, "Terbuka "+String(pinValue)+" Derajat");
  Blynk.virtualWrite(V4, "Vibrator ON");
}else{
  digitalWrite(vibrator, LOW);
  Blynk.virtualWrite(V4, "Vibrator OFF");
  Blynk.virtualWrite(V5, "Terutup "+String(pinValue)+" Derajat");
}
if (a == 1){
  Blynk.virtualWrite(V2, 0);
}
}
BLYNK_WRITE(V3){
int reset = (param.asInt());
if (reset == 1){
  digitalWrite(vibrator, LOW);
myservo.write(0);
  delay(15);
Blynk.virtualWrite(V2, 0);
  a = 1;
} else {
  a = 0;
}
}
void sendSensor()
{
digitalWrite (indikator, HIGH);
digitalWrite(TRIG_PIN, LOW);
delayMicroseconds(2);
digitalWrite(TRIG_PIN, HIGH);
delayMicroseconds(10);
digitalWrite(TRIG_PIN, LOW);
int duration = pulseIn(ECHO_PIN, HIGH);
float distance = duration * 0.034 / 2;
if (a == 0){
if (distance >= 20 && distance <= 100){
Blynk.virtualWrite(V1, "Air masih aman");
//Blynk.virtualWrite(V4, "Vibrator ON");
Blynk.virtualWrite(V0, "Buzzer OFF");
}
if (distance > 100 && distance <= 130){
Blynk.virtualWrite(V1, "Sudah mulai siaga");
//Blynk.virtualWrite(V4, "Vibrator ON");
Blynk.virtualWrite(V0, "Buzzer OFF");
}
if (distance > 120 && distance <= 130)
Blynk.virtualWrite(V1, "mulai mengungsi");
Blynk.virtualWrite(V0, "Buzzer OFF");
if (distance >150){
   Blynk.virtualWrite(V1, "Mengungsi");
   Blynk.virtualWrite(V4, "Vibrator OFF");
   Blynk.virtualWrite(V0, "Buzzer Aktif");
   Blynk.virtualWrite(V2, 0);
digitalWrite(vibrator, LOW);
myservo.write(0);
delay(15);
tone (buzzer, 150);
delay(500);
noTone(buzzer);
}
delay(100);
}
if (a == 1){
Blynk.virtualWrite(V1, "");
noTone(buzzer);
Blynk.virtualWrite(V0, "Buzzer Tidak Aktif");
}
}