STeMCell VS qmk_firmware

I ordered a pre-assembled STeMCell MCU. The dfu bootloader works, and I was able to flash the uf2 bootloader onto there, but i'm not sure how to put it into uf2 bootloader mode. When I power the MCU on while holding the BOOT0 button down, it goes back into dfu mode. Am I missing something?

in the meantime, we've been using stemcell controllers which don't have the same issue

And I do agree that ESD issues are often overblown, but since I gotten my hand on some STMCELL back when pro micros were hard to get , I had to think hard about esd protection as "This design does not have any fuse, esd protection or reverse voltage protection." https://github.com/megamind4089/STeMCell

stemcell, but you need to build it yourself.

Your promicro is not enough program memory(32kb) to use some animations, let's use another controller which have more program memory like stemcellhttps://github.com/megamind4089/STeMCell

The blackpill is not, but the bonsai c4 is, alongside the stemcell, if you're JLCPCB-wise

There are a few controllers that have the additional holes (puchi-c, goldfish, comet etc) not just the elite-c. StemCell is probably one of the more open ones and you can get them assembled at jlc I believe? https://github.com/megamind4089/STeMCell

STeMCell

https://github.com/megamind4089/STeMCell/tree/main/gerbers https://github.com/megamind4089/STeMCell/tree/main/bom

https://github.com/KarlK90/qmk_firmware.git and branch feature/raspberry-pi-rp2040-support

For reference for anyone that tries it: - the kb2040 works fine for me now in my Fifi, not noticed any issues so far - At the time of writing support is not merged to QMK yet, I used the KarlK90 branch - for the keyboard to work, I only had to change the PIN mappings: from

I too have the wireless version for my laptop! Both my Elecom huges have the ball bearing mod. I'd recommend picking some up and doing it, makes the ball so much smoother. Build log is on the Crowboard github page. and I used KMK firmware. Firmware for this particular board is on the Keyboard Dweebs firmware repository. If you wanna take a look at what is needed. It's very straight forward. Easier than QMK in a lot of ways. There is a version of QMK for pico that's being worked on. the branch is here if you're interested. as far as I am aware almost everything is working now too, which is neat. So I'm going to work on getting qmk on the crowboard in the next week or so.

Thank you, the layout is available in the my personal qmk repo for key placement see the layout tester or case files. While pro micros are good, I would recommend going with blackpill boards with stm32f411 mcus.