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

#define pinLed1 12
#define pinLed2 11
#define pinLed3 10
#define pinLed4 9
#define pinButton1 8
#define pinButton2 7
#define pinClock 6
#define pinData 5
#define pinLatch 4
#define pinClockLed 3
#define pinDataLed 2
#define pinLatchLed 13

//Set alamat I2C dan ukuran LCD
LiquidCrystal_I2C lcd(0x27,16,2);

//variabel bilangan bulat
int dataPertama = 100;
int dataButton1 = 0;
int dataButton2 = 0;
int k1 = 0;
int k2 = 0;
int menu = 0;
uint8_t dataDummy = 0;
//variabel bilangan pecahan
float dataKedua = 100.7;
//variabel array
uint8_t arraySegment[10] = {
  0b00000011, //0
  0b10011111, //1
  0b00100101 //2
};

void setup(){
  pinMode(pinLed1, OUTPUT);
  pinMode(pinLed2, OUTPUT);
  pinMode(pinLed3, OUTPUT);
  pinMode(pinLed4, OUTPUT);
  pinMode(pinButton1, INPUT);
  pinMode(pinButton2, INPUT);
  pinMode(pinClock, OUTPUT);
  pinMode(pinData, OUTPUT);
  pinMode(pinLatch, OUTPUT);
  pinMode(pinClockLed, OUTPUT);
  pinMode(pinDataLed, OUTPUT);
  pinMode(pinLatchLed, OUTPUT);
  Serial.begin(9600);
  lcd.init();
  lcd.backlight();
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Welcome");
  lcd.setCursor(0,1);
  lcd.print("Hello World");
  delay(2000);
  lcd.clear();

  // for(uint8_t i=0; i<8; i++){
  //   dataDummy = ((0b10000001>>i)&1);
  // }
}

void loop(){
  //biner 0b1001
  //hexadecimal 0xA1
  // dataDummy = 0b10000001 << 3;//00001000
  // lcd.setCursor(0,0);
  // lcd.print(dataDummy);

  for(uint8_t i=0; i<8; i++){
    //data
    digitalWrite(pinData, (arraySegment[0]>>i)&1);
    //clock
    digitalWrite(pinClock, 0);
    digitalWrite(pinClock, 1);
  }
  //latch
  digitalWrite(pinLatch, 0);
  digitalWrite(pinLatch, 1);
  //abcdefgh
  //00100101
  shiftRegLed();
}

void shiftRegLed(){
  for(uint8_t i=0; i<8; i++){
    digitalWrite(pinDataLed, (0b10001001>>i)&1);
    digitalWrite(pinClockLed, 0);
    digitalWrite(pinClockLed, 1);
  };
  digitalWrite(pinLatchLed, 0);
  digitalWrite(pinLatchLed, 1);
}