IoT 아두이노 0616 - V/R + ("O")MOVE + LED ON/OFF

#include <LiquidCrystal.h>
//#include <math.h>
int pin_LED[8] = {22,24,26,28,30,32,34,36};
int pin_VR = A1;
int pin_LCD_DATA[8] = {A8,A9,A10,A11,A12,A13,A14,A15};
int pin_LCD_CTRL[3] = {A5,A6,A7};
LiquidCrystal lcd(A5,A6,A7,A8,A9,A10,A11,A12,A13,A14,A15);
int cksum = 0;

void setup() {
  pinMode(pin_VR, INPUT);
  lcd.begin(16,2);
  for(int i=0; i<8; i++)
  {
    pinMode(pin_LED[i],OUTPUT);
    digitalWrite(pin_LED[i], LOW);
  }
}

void loop() {
  uint16_t da = analogRead(pin_VR);
  float calc = (float)da/25;
  float cal2 = (float)da/50;
  int gogo = -1;
  int go_move = ceil(calc);
  int go_move_h = ceil(cal2) *2 ;
  //lcd.clear();lcd.print(go_move);delay(500); //Debug

  if(go_move<2){
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("O");
    LED_control(0);
    delay(500);
  }
  else{
    if(go_move<16){
      if(go_move > 14) LED_control(255);
      //else LED_control(0);
      lcd.clear();
      lcd.setCursor(go_move, 0);
      lcd.print("O");
      delay(500);
    }
    else{
      if(go_move == 16) LED_control(255);
      //else LED_control(0);
      for(int t=1;t<=go_move-15;t++)
      {
        gogo+=2;
      }
      lcd.clear();
      if(go_move == 29) cksum=1;
      if(cksum == 1){
        go_move++;
        cksum=0;
      }
      lcd.setCursor(go_move - gogo, 1);
      lcd.print("O");
      if(go_move > 29) LED_control(0);
      delay(500);
    }
  }
}

void LED_control(uint8_t da)
{
  for(int i=0; i<8; i++)
  {
    digitalWrite(pin_LED[i], (da >> i) & 0x1);
  }
}