Arduino Buttons Made Simple(r)!

//setting Pinmode to INPUT_PULLUP, instead of basic INPUTpinMode(BUTTON_PIN, INPUT_PULLUP);

#define RED_BTN 10#define YLW_BTN 11#define GRN_BTN 12unsigned long lastRead = 0;unsigned int readOffset = 1000; //max MS between resetsint lastButtonPressed = 0;int buttonTimeout = 0;void setup(){  Serial.begin(9600);  pinMode(RED_BTN, INPUT_PULLUP);  pinMode(YLW_BTN, INPUT_PULLUP);  pinMode(GRN_BTN, INPUT_PULLUP);}void loop(){  buttonLogic(); //check for a press event every loop  if (millis() - lastRead > readOffset) //run this read every X milliseconds  {    // Record read time    lastRead = millis();    if (--buttonTimeout < 0) {      lastButtonPressed = 0; // reset button press after button timeout is hit      buttonTimeout = 0;    }  }}void buttonLogic() {  if (buttonPressed(RED_BTN)) {    Serial.println("Red, Stop!");  }  if (buttonPressed(YLW_BTN)) {    Serial.println("Yellow, hurry up!");  }  if (buttonPressed(GRN_BTN)) {    Serial.println("Green, Go time!");  }}const int PRESSED = LOW; // LOW means pressed when using INPUT_PULLUPbool buttonPressed(int btn) {  //Check is button is being pressed  int state = digitalRead(btn);  if (state == PRESSED) {    // Check if first time pressed or different button    if (lastButtonPressed != btn) {      // Track which button was last pressed, set timeout cycles and return true      lastButtonPressed = btn;      buttonTimeout = 2;      return true;    }  }  // when button is not being pressed,   // or the same button has already been pressed, return false  return false;}