#define BLYNK_PRINT Serial

#define BLYNK_TEMPLATE_ID "TMPL6D11OcSZ0"
#define BLYNK_TEMPLATE_NAME "Ultrasonik"

#define echoPin 15
#define trigPin 2

#include <BlynkSimpleEsp32.h>

#define LED_RED 2
#define LED_YELLOW 4
#define LED_BLUE 5

char auth[] = "L49SjNf8AiI2V_4aISTRagtERHGBqR_c";
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

BlynkTimer timer;

float ultrasonik() {
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
int durasiPantulan = pulseIn(echoPin, HIGH);
float distance = durasiPantulan * 0.034 / 2;
return distance;
 }

void kirimData() {
float distance = ultrasonik();

Blynk.virtualWrite(V1, distance);

Serial.print("Jarak : ");
Serial.print(distance);
Serial.println("cm ");

// Ketinggian air
     
if (distance > 200) {
Serial.println("Jarak jauh");
digitalWrite(LED_RED, HIGH);
digitalWrite(LED_YELLOW , LOW);
digitalWrite(LED_BLUE, LOW);
} else if (distance > 100 && distance <= 200) {
Serial.println("Jarak sedang");
digitalWrite(LED_RED, LOW);
digitalWrite(LED_YELLOW, HIGH);
digitalWrite(LED_BLUE, LOW);

} else if (distance < 100) 
  Serial.println("Jarak dekat");
  digitalWrite(LED_RED, LOW);
  digitalWrite(LED_YELLOW, LOW);
  digitalWrite(LED_BLUE, HIGH);
                                                                 
  delay(1000);
 }
                                                                                  BLYNK_WRITE(V0) {
                                                                                    int pinVal = param.asInt();
                                                                                      digitalWrite(LED_RED, pinVal);
                                                                                      }

                                                                                      void setup() {
                                                                                        pinMode(echoPin, INPUT);
                                                                                          pinMode(trigPin, OUTPUT);

                                                                                            Serial.begin(115200);
                                                                                              Blynk.begin(auth, ssid, pass);

                                                                                                pinMode(LED_RED, OUTPUT);
                                                                                                  pinMode(LED_YELLOW, OUTPUT);
                                                                                                    pinMode(LED_BLUE, OUTPUT);

                                                                                                      timer.setInterval(2000L, kirimData);
                                                                                                      }

                                                                                                      void loop() {
                                                                                                        Blynk.run();
                                                                                                          timer.run();
                                                                                                          }