#define UPBUTTON A7 //A7 - button up #define LEFTBUTTON A8 //A8 - button left #define DOWNBUTTON A9 //A9 - button down #define RIGHTBUTTON A10 //A10 - button right void setup() { Serial.begin(9600); pinMode(UPBUTTON, INPUT_PULLUP); pinMode(LEFTBUTTON, INPUT_PULLUP); pinMode(DOWNBUTTON, INPUT_PULLUP); pinMode(RIGHTBUTTON, INPUT_PULLUP); } void loop() { if (!digitalRead(UPBUTTON)) { Serial.println("Up"); } if (!digitalRead(LEFTBUTTON)) { Serial.println("Left"); } if (!digitalRead(DOWNBUTTON)) { Serial.println("Down"); } if (!digitalRead(RIGHTBUTTON)) { Serial.println("Right"); } delay(200); //debounce }