Medium Article

doublePress

void loop()
{
  if (!digitalRead(2))
  {
    CAN0.readMsgBuf(&rxId, &len, rxBuf);
    delay(5);
    if ((rxId == buttonId) && (rxBuf == buttonData))
    {
      buttonPress++;
      if (buttonPress == 1)
      {
        startMillis = millis();
      }
      if (buttonPress == 2)
      {
        endMillis = millis();
        if (endMillis - startMillis <= 1000)
        {
          buttonPress = 0;
          //Do something!
        }
        else
        {
          buttonPress--;
      }
    }
  }
  if ((buttonPress == 1) && (millis() - startMillis > 1000))
  {
    buttonPress--;
  }
}