#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
uint8_t dataButton1 = 0;
uint8_t dataButton2 = 0;
uint8_t k1 = 0;
uint8_t k2 = 0;
uint8_t menu = 0;
uint8_t counter = 0;
uint8_t dataDummy = 0;
//variabel array
uint8_t arraySegment[10] = {
  0b00000011, //0
  0b10011111, //1
  0b00100101, //2
  0b00001101, //3
  0b10011001, //4
  0b01001001, //5
  0b01000001, //6
  0b00011111, //7
  0b00000001, //8
  0b00001001 //9
};

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);
  shifRegBlankSeg();
  lcd.init();
  lcd.backlight();
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("SMKN 39 JAKARTA");
  lcd.setCursor(0,1);
  lcd.print("  ELECTRONICS  ");
  delay(1000);
  lcd.clear();

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

void loop(){
  counter++;
  if(counter > 8){
    counter = 1;
  }
  lcd.setCursor(0,0);
  lcd.print("Counter : ");
  lcd.print(counter);
  shiftRegSeg(counter);
  shiftRegLed(counter);
  delay(1000);
}

void shiftRegSeg(uint8_t dataSeg){
  for(uint8_t i=0; i<8; i++){
    digitalWrite(pinData, (arraySegment[dataSeg]>>i)&1);
    digitalWrite(pinClock, 0);
    digitalWrite(pinClock, 1);
  }
  digitalWrite(pinLatch, 0);
  digitalWrite(pinLatch, 1);
}

void shifRegBlankSeg(){
  for(uint8_t i=0; i<8; i++){
    digitalWrite(pinData, (0b11111111>>i)&1);
    digitalWrite(pinClock, 0);
    digitalWrite(pinClock, 1);
  }
  digitalWrite(pinLatch, 0);
  digitalWrite(pinLatch, 1);
}

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