“V-USB is a low speed USB library solution for AVR micro controllers. It enable us to create HID devices (Keyboard, Mouse, Gamepad etc) by using AVR micro controllers.
The HID keyboard implementation is based on HID 1.11. It support max 6 key presses at the same time. It also support key hold over time. You may hold one key down while click on a different key.
Here is how I create a HID keyboard for Project Diva Arcade Future Tone. (PD-Loader 2.0)”