#include <NewPing.h>
#define TRIGGER_PIN 7
#define ECHO_PIN 6
#define MAX_DISTANCE 400

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE);

void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
Serial.println("Sensor Ultrasonik");
delay(500);
}

void loop() {
// put your main code here, to run repeatedly:
delay(1000);
Serial.print("Jarak = ");
Serial.print(sonar.ping_cm());
Serial.println("cm");
}