이메일주소 무단수집거부 A USB Host shield which allows an Arduino board to communicate with a USB device such as a toetsenbord or a mouse There kan zijn also a threading tool, named Protothreads. Protothreads are described as "extremely lightweight stackless threads designed for severely memory constrained systems, such as https://gaiaathome.eu/gaiaathome/show_user.php?userid=459855