#define LED_RED 6
#define LED_GREEN 5
#define LED_BLUE 3

#define RED_BUTTON 2
#define GREEN_BUTTON 4

void initButtons()
{
    pinMode(RED_BUTTON, INPUT_PULLUP);
    pinMode(GREEN_BUTTON, INPUT_PULLUP);
}

void setup()
{
    pinMode(LED_RED, OUTPUT);
    digitalWrite(LED_RED, LOW);

    pinMode(LED_GREEN, OUTPUT);
    digitalWrite(LED_GREEN, LOW);
}

void loop()
{

    if (digitalRead(RED_BUTTON) == LOW)
      digitalWrite(LED_RED, HIGH);
    else
      digitalWrite(LED_RED, LOW);

    if (digitalRead(GREEN_BUTTON) == LOW)
      digitalWrite(LED_GREEN, HIGH);
    else
      digitalWrite(LED_GREEN, LOW);

    delay(1000);
}