// C++ code
//
/*
  Button
  Turns on and off a light emitting diode(LED)
  connected to digital  pin 13, when pressing a
  pushbutton attached to pin 2.

   The circuit:
  * LED attached from pin 13 to ground
  * pushbutton attached to pin 2 from +5V
  * 10K resistor attached to pin 2 from ground
  * Note: on most Arduinos there is already an LED
  on the board  attached to pin 13.

  created 2005  by DojoDave <http://www.0j0.org>

  modified 30 Aug 2011  by Tom Igoe

  This example code is in the public domain.
  http://www.arduino.cc/en/Tutorial/Button
*/

int buttonState = 0;
#include <LiquidCrystal_I2C.h>  /*include LCD I2C Library*/
LiquidCrystal_I2C lcd(0x27,16,2);  /*I2C scanned address defined + I2C screen size*/

void setup(){
  pinMode(5, INPUT_PULLUP);
  pinMode(3, INPUT_PULLUP);
  pinMode(2, INPUT);
  pinMode(4, OUTPUT);
   lcd.init();  /*LCD display initialized*/
  lcd.clear();     /*Clear LCD Display*/
  lcd.backlight();      /*Turn ON LCD Backlight*/
  lcd.setCursor(2,0);   /*Set cursor to Row 1*/
  lcd.print("Smart Tester"); /*print text on LCD*/
  lcd.setCursor(1,1);   /*set cursor on row 2*/
  lcd.print("BY Diki Pradana"); /*print message on LCD*/
  delay(1000);
}

void loop()
{
     lcd.init();  /*LCD display initialized*/
  lcd.clear();     /*Clear LCD Display*/
  lcd.backlight();      /*Turn ON LCD Backlight*/
  lcd.setCursor(14,0);   /*Set cursor to Row 1*/
  lcd.print("OK"); /*print text on LCD*/
  lcd.setCursor(14,1);   /*set cursor on row 2*/
  lcd.print("NG");  
  if(digitalRead(5) == LOW){
     lcd.setCursor(0,0); 
  lcd.print("1");
   }if(digitalRead(3) == LOW){
     lcd.setCursor(1,0); 
  lcd.print("2");
   }if(digitalRead(3) == HIGH){
     lcd.setCursor(1,1); 
  lcd.print("2");
   }if(digitalRead(5) == HIGH){
     lcd.setCursor(0,1); 
  lcd.print("1"); 
   }
  // read the state of the pushbutton value
  buttonState = digitalRead(2);
  // check if pushbutton is pressed.  if it is, the
  // buttonState is HIGH
  if (buttonState == HIGH) {
    // turn LED on
    digitalWrite(4, HIGH);
      Serial.println("LED ON 10 Detik"); 
     delay(5000);
  } else {
    // turn LED off
    digitalWrite(4, LOW);
      
  }
 
}