nrf: implement BLE HID

[dhalbert]

[tannewt]

why is USB in the title?

[dhalbert]

why indeed?

[RoganDawes]

Is there any intention to implement this? I'd love to be able to implement a keyboard/mouse composite device in CircuitPython!

[dhalbert]

Yes, it is high on the list of features to implement next.

[jscholes]

Do you have any sort of ideas as to a timeline on this, or where it fits in on the roadmap. This would be super helpful for a project we're currently working on. If we were to write a Python extension in C, would we have access to the Arduino BLE libraries to implement BLE HID from that route? Or would it need to be done from scratch.

[dhalbert]

Good timing: I have been working on this today. The code is really all in Python: the C BLE modules provide the infrastructure. The HID-specific part of the code is relatively complex because of the complexity of HID. It needs pairing and bonding: I have pairing working, but have not yet implemented bonding (remembering the pairing info so you don't need to re-pair).

No promises on when it will get done, but it's my current task!

[jscholes]

Seriously fantastic news. Are you developing this on a public branch or repo? Would love to check it out and maybe help if you're looking for outside contributions. Thanks!