IoT 아두이노 0609 - LCD No.2

#include <LiquidCrystal.h>

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 sw[6] = {20,22,24,26,28,30}; // Switch
void setup() {
  lcd.begin(16,2);
  pinMode(sw,INPUT_PULLUP);

}
void loop() {
   boolean pw = false;
   int w=0 , h=0;
   while(1){
   lcd.clear();
   if(digitalRead(sw[1]) == HIGH) {w=0;delay(100);} //UP
   if(digitalRead(sw[2]) == HIGH) {w=1;delay(100);} //DOWN
   if(digitalRead(sw[3]) == HIGH) {if(h<=0){continue;}h--;delay(100);} //LEFT
   if(digitalRead(sw[4]) == HIGH) {if(h>=15){continue;}h++;delay(100);} //RIGHT
   lcd.setCursor(h,w);
   lcd.print("*");
   delay(100);
   }
}