If you are curious what PCB designs or schematics look like, you can use an online viewer for KiCad files to find out yourself:

https://kicanvas.org/?github=https%3A%2F%2Fgithub.com%2FNich...

@creator of the card (phirks?): have you considered further interactivity or maybe using the LED matrix for showing text or other information?

You could use touch buttons for control as they basically add nothing to the BOM?

Edit: this is of course really awesome as it is

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phirks 8 days ago | parent [-]

I was thinking of throwing in a game like Tetris with just accelerometer controls. That'll be after I find a job though. Numbers were actually the first things I displayed, I actually still have all the code to display them still sitting unused.

Text has been less of a success. Having the letters be easily legible takes more space than I would have thought, and the small pixel fonts don't look great with the big spacing between the LEDs. Maybe some scrolling text would look good, but I haven't focused on it too much. I tried getting a QR code displayed, but it didn't want to scan.

For buttons, I'm kind of married to the idea of no buttons. The accelerometer does recognize clicks and double clicks in different directions, so that might be useful for something.

I encourage anyone who wants to fork/contribute/post issues on this to do so and I'll try to be a good maintainer.

	▲	_Microft 8 days ago \| parent \| next [-]
		Thanks for the detailed reply. I actually like the idea of using the accelerometer as input device and the design choice of using no buttons. What’s the update rate of the LED matrix if I may ask? Maybe the combination of an accelerometer and the LEDs lends itself to a persistence of vision display?
	▲	echelon 8 days ago \| parent \| prev [-]
		> That'll be after I find a job though. I can't imagine you'll be on the job market for long (and I certainly hope not). This is such an amazing looking for work ad, I'd imagine you'll get snapped right up. Major kudos on this. It's amazing!