#define BLYNK_TEMPLATE_ID "TMPL6NypHt4sx"
#define BLYNK_TEMPLATE_NAME "SWARFS"
#define BLYNK_AUTH_TOKEN "wBwjZxhFv0iC9TaXcermyXAWB2jC1au3"
#define BLYNK_PRINT Serial


//***** button *****//
const int buttonPin = 18;
const int ledPin = 5;
int buttonState = 0;


//***** sensor *****//
const int triggerPin = 27;
const int echoPin = 26;


long duration;
float TinggiSensor;
float ElevasiDasar;
float Jarak;
float TinggiAir;
float Elevasi;


#include <WiFi.h>
#include <WiFiUdp.h>
#include <NTPClient.h>
#include <HttpClient.h>
#include <BlynkSimpleEsp32.h>


//***** wifi diisi sesuai koneksi yang terhubung perangkat*****//
char ssid[] = "Wokwi-GUEST";       
char password[] = "";
char auth[] = BLYNK_AUTH_TOKEN;
BlynkTimer timer;


const char* ntpServer = "pool.ntp.org";
const long gmtOffset_sec = 25200;
const int daylightOffset_sec = 0;


WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, ntpServer, gmtOffset_sec, daylightOffset_sec);


void setup()
{
 pinMode(buttonPin, INPUT);
 pinMode(ledPin, OUTPUT);
 Serial.begin(115200);


 Serial.begin(9600);
 pinMode(triggerPin, OUTPUT);
 pinMode(echoPin, INPUT);
 Blynk.begin(auth, ssid, password, "blynk.cloud", 80);


 Serial.begin(115200);
 WiFi.begin("Wokwi-GUEST", "", 6);
 while (WiFi.status() != WL_CONNECTED) {
   delay(100);
   Serial.print(".");
 }
 Serial.println("Connected to WiFi");


}


void loop()
{
 buttonState = digitalRead(buttonPin);


 digitalWrite(triggerPin, LOW);
 delayMicroseconds(2);
 digitalWrite(triggerPin, HIGH);
 delayMicroseconds(10);
 digitalWrite(triggerPin, LOW);


//***** diisi dan disesuaikan pada saaat penukuran, dalam satuan "cm" *****//
 TinggiSensor = 400;    
 ElevasiDasar = 5000;   


 duration = pulseIn(echoPin, HIGH);
 Jarak = duration * 0.034 / 2;
 TinggiAir = (TinggiSensor - Jarak);
 Elevasi = (ElevasiDasar + TinggiAir);


 if(buttonState == HIGH)
 {
   digitalWrite(ledPin, HIGH);
   delay(1000);
   digitalWrite(ledPin, LOW);
   delay(1000);


   Serial.println();


   timeClient.update();
   Serial.print("Time (GMT) : ");
   Serial.println(timeClient.getFormattedTime());


   Serial.print("Jarak      : ");
   Serial.printf("%.1f cm\n", Jarak);


   Serial.print("Tinggi Air : ");
   Serial.printf("%.1f cm\n", TinggiAir);


   Serial.print("Elevasi    : ");
   Serial.printf("%.3f m\n", Elevasi / 100);


   Blynk.run();
   timer.run();
   Blynk.virtualWrite(V0, Jarak);
   Blynk.virtualWrite(V1, TinggiAir);
   Blynk.virtualWrite(V2, Elevasi / 100);
  
   Serial.println();
   delay(55700);
 }
 


  
}