So they built a custom device to convert the NeXT protocol to USB. The device uses a Arduino Micro to read data from the keyboard and communicate as a HID device over USB. It connects to the ...

Described here are the construction details of a universal serial bus human interface device (USB HID) external keyboard for devices running on Windows and/or Android operating systems. The keyboard ...

Previously, the best method was to blink the Caps Lock LED on a keyboard, sending one bit at a time to a micocontroller. [d3ad0ne]’s build exploits the USB HID protocol, but instead of 1 bit per ...