#define BLYNK_TEMPLATE_ID "TMPL6MXh37_bX"
#define BLYNK_TEMPLATE_NAME "job 4"
#define BLYNK_AUTH_TOKEN "EyVzaSksIz5zLlGTqjPcKirGY4G2A5py"
#define BLYNK_PRINT Serial 
#define ledRed 13
#define ledYellow 12
#define ledGreen 14
#define pinEcho 2
#define pinTrigger 15
//Libraries
#include <WiFi.h> //deklarasi library WiFi.h
#include <WiFiClient.h> // deklarasi library WiFiClient.h
#include <BlynkSimpleEsp32.h> // deklarasi library blynk

BlynkTimer timer; // merubah perintah BlynkTimer menjadi "timer"

char auth[] = "EyVzaSksIz5zLlGTqjPcKirGY4G2A5py"; 
char ssid[] = "Wokwi-GUEST"; //ssid wifi yang digunakan
char pass[] = ""; //password wifi yang digunakan

void setup(){
  //put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Selamat datang pada sistem tandon air otomatis");
  Blynk.begin(auth, ssid, pass); //inisialisasi komunikasi dengan server b]
  //timer.setInterval(2000L); //interval pengiriman senData dari mikrokont
  pinMode(pinEcho, INPUT);
  pinMode(pinTrigger, OUTPUT);

  pinMode(ledRed, OUTPUT);
  pinMode(ledYellow, OUTPUT);
  pinMode(ledGreen, OUTPUT);
}

float readUltrasonic(){
  digitalWrite(pinTrigger, LOW);
  delayMicroseconds(2);
  //trigger PIN dengan sinyal HIGH selama 10micro detik
  digitalWrite(pinTrigger, HIGH);
  delayMicroseconds(10);
  digitalWrite(pinTrigger, LOW);
  
  //echo PIN dengan sinyal HIGH 
  int duration = pulseIn(pinEcho, HIGH);
  float dist_cm = duration * 0.034 / 2;
  return dist_cm;
  //float dist_inch = duration * 0.0133 / 2;

}

void loop(){
  //put your main code here, to run repeatedly:
  float waterLevel = readUltrasonic();
  Serial.println("Batas Ketinggian Air adalah: ");
  Serial.println(waterLevel);

  if (waterLevel  > 150) {
    digitalWrite(ledGreen, HIGH);
    digitalWrite(ledYellow, LOW);
    digitalWrite(ledRed, LOW);
    Blynk.virtualWrite(V0, waterLevel);
  }
  else if (waterLevel >100 && waterLevel <=150){
    digitalWrite(ledRed, HIGH);
    digitalWrite(ledGreen, LOW);
    digitalWrite(ledYellow, LOW);
    Blynk.virtualWrite(V0, waterLevel);
  }
  else if(waterLevel <=50) {
    digitalWrite(ledRed, HIGH);
    digitalWrite(ledGreen, LOW);
    digitalWrite(ledYellow, LOW);
  }
  Blynk.run();
}