Any information for using HID with arcore?

[Reggi3]

Hi, I read that arcore is capable of being a HID firmware, do you have any examples of it's usage at all?

[rkistner]

What exactly do you want to do? What board are you using? Note that you'll need an Arduino Leonardo, Arduino Micro or similar board.

If you just want to do keyboard and/or mouse emulation, you don't need arcore at all - you can just use the standard Arduino cores. See this example.

If you want to emulate a different HID device, for example a joystick, you'll need to write your own USB firmware for the Arduino. For this you can use arcore as a starting point. You can look at how the keyboard and mouse is implemented in the following files:

https://github.com/rkistner/arcore/blob/master/avr/cores/arcore/HID.cpp
https://github.com/rkistner/arcore/blob/master/avr/cores/arcore/USBAPI.h
https://github.com/rkistner/arcore/blob/master/avr/cores/arcore/USBDesc.h

Note that arcore is forked from the main Arduino codebase, and the HID functionality is exactly the same. However, the fact that it's a separate repository should make it easier to modify/extend.

[Reggi3]

Hi, I'm using an arduino leonardo, I've been using arcore extensively for midi for a few weeks, now I have a project where I'd like to be able to send raw HID.

[rkistner]

Ok, in that case you'll have to write the USB firmware from the USB HID specification yourself, as mentioned above.

My USB notes might also help.