// WATER DISPENSER

#define trigger 5
#define echo 4
#define relay 6

float time = 0, distance = 0;

void setup()
{
   Serial.begin(9600);
   pinMode(tirgger, OUTPUT);
   pinMode(echo, INPUT);
   pinMode(Relay, OUTPUT);
   delay(2000);


void loop()

   measure_distance();

   if(distance  5) // Jika objek terdeteksi kurang dari 5 cm
   {
       digitalWrite(Relay, HIGH); // Relay ON (mengaktifkan pompa)
   }
   else
   {
       digitalWrite(Relay, LOW); // Relay OFF (mematikan pompa)
   }

   delay(500)
}

void measure_distance()
{
   digitalWrite(trigger, LOW);
   delayMicroseconds(2);
   digitalWrite(trigger, HIGH);
   delayMicroseconds(10
   digitalWrite(trigger, LOW);

   time = pulseIn(echo, HIGH); // Mengukur waktu pantulan

   distance = time * 0.034 / ; // Menghitung jarak (kecepatan suara 0
}