#include <LiquidCrystal_I2C.h>


LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16, 2);


#define PIN_TRIG 4
#define PIN_ECHO 5
#define PIN_GERAK 18

int val = 0;    
int pos = 0; 

void setup() {
  Serial.begin(115200);
  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);
  pinMode(PIN_GERAK, INPUT);




  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.print("Connecting to ");
  LCD.setCursor(0, 1);
  LCD.print("WiFi ");
  delay(1500);
  LCD.clear();
  LCD.setCursor(0, 0);
  LCD.println("Online");
  LCD.setCursor(0, 1);
  LCD.println("Updating time...");


}

void loop() {

  digitalWrite(PIN_TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG, LOW);

  val = digitalRead(PIN_GERAK); //baca input
if (val == HIGH) {    
  LCD.setCursor(1, 3);
  LCD.print("GERAK");
}else{
  LCD.print("");
}

  int duration = pulseIn(PIN_ECHO, HIGH);
  Serial.println(duration / 58);
  LCD.clear();
  LCD.println(duration / 58);
  LCD.print("CM");
  delay(1000);
}