forums.nabu.ca

Here's something I just hacked together:



I need to call it a day, so the details are a little light now, but there's not much magic to it. What's needed to replicate this is an Adafruit Trinket M0, a TTL to RS422 converter (I'm using an RS485 one because it's what I had lying around, but I believe https://www.amazon.com/gp/product/B07BJJ4J64 would be a more appropriate part), and the attached firmware, which is just https://github.com/gdsports/usbhostcopr ... BDUARTUSBH with the baud rate changed to 6992. And a bunch of wires.

This was mostly out of curiosity to see if it would work. It works.

Hey, that's another wonderful keyboard solution. I love it!

That’s a nice one because it don’t use the pc! Nice option

Oh, neat! I have most of this stuff lying around. I'll give this a whack.

The "just stuff the wires in the holes" bit is the best part.

When you don't have a 6-pin DIN connector lying around, you use what you can find... I did put ferrules on the wires for a better fit.

For anybody following along, I've put my modified keyboard converter firmware at https://github.com/masto/usbhostcopro/tree/nabu.

Specifically, the https://github.com/masto/usbhostcopro/b ... ket_m0.uf2 is ready to drag-and-drop onto a Trinket M0. It just does basic ASCII, so making it handle extra NABU-specific keys, joysticks, etc., could be an interesting starter project for someone who wants to fiddle around with this stuff.

Leaving this video unlisted to avoid filling my channel with too many of these work-in-progress videos, but folks here might be interested. Here's a prototype of an all-in-one keyboard converter board.

Real great!! I'm going to get a few from you when you're done for the nabu that I'm missing a keyboard for