#include <Wire.h>
#include <LiquidCrystal_I2C.h>

#define TRIG_PIN 18  // Trig ke GPIO 18
#define ECHO_PIN 19  // Echo ke GPIO 19

LiquidCrystal_I2C lcd(0x3f, 16, 2); // Ubah sesuai hasil pemindaian

void setup() {
  Serial.begin(115200);
    lcd.begin(16, 2);
      lcd.backlight();
        pinMode(TRIG_PIN, OUTPUT);
          pinMode(ECHO_PIN, INPUT);
          }

          void loop() {
            digitalWrite(TRIG_PIN, LOW);
              delayMicroseconds(2);
                digitalWrite(TRIG_PIN, HIGH);
                  delayMicroseconds(10);
                    digitalWrite(TRIG_PIN, LOW);

                      long duration = pulseIn(ECHO_PIN, HIGH);
                        int distance = duration * 0.034 / 2;

                          lcd.setCursor(0, 0);
                            lcd.print("Distance: ");
                              lcd.print(distance);
                                lcd.print(" cm   ");

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

                                        delay(500);
                                        }