//Kontrol Pakan Ikan
#include <Servo.h>
#define ECHO_PIN 6
#define TRIG_PIN 7
const int PIN_SERVO = 3;
Servo motorServo;

void setup() {
  motorServo.attach(PIN_SERVO);
  Serial.begin(115200);
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);
  motorServo.write(0);
}

void loop() {
  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;

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

if(distance<=30)
  {
  motorServo.write(180);
  delay(3000);
  motorServo.write(0);
  delay(1000);
  }

if(distance>30)
  {
  motorServo.write(0);
  delay(1000);
  }
}