STeMCell
STM32F4 breakout board in pro micro pinout. Designed mainly for ergo split keyboards. (by megamind4089)
qmk_firmware
Open-source keyboard firmware for Atmel AVR and Arm USB families (by bschwehn)
| STeMCell | qmk_firmware | |
|---|---|---|
| 13 | 2 | |
| 113 | 0 | |
| - | - | |
| 0.0 | 0.0 | |
| over 1 year ago | 8 months ago | |
| HTML | C | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 only |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
STeMCell
Posts with mentions or reviews of STeMCell.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-08-07.
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Ordered an assembled STeMCell, but can't put it into uf2 bootloader mode. Am I missing something?
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?
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My rapidly accelerating pursuit of ergo
in the meantime, we've been using stemcell controllers which don't have the same issue
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Why the strange keyboards?
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
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I feel like I could overload these even more…
stemcell, but you need to build it yourself.
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Pro Micro Crashing Oled ?
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
- List of keyboards by controller / not using pro micro
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AMTEGA32u4 on keyboard
The blackpill is not, but the bonsai c4 is, alongside the stemcell, if you're JLCPCB-wise
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Creating a custom 36 key split gergoplex / ferris sweep style board?
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
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Is AVR not enough for QMK nowadays? I'm struggling with firmware and EEPROM size and can't enable all the features I want.
STeMCell
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JLCPCB manufactured STeMCell v1.0.0
https://github.com/megamind4089/STeMCell/tree/main/gerbers https://github.com/megamind4089/STeMCell/tree/main/bom
qmk_firmware
Posts with mentions or reviews of qmk_firmware.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-06-11.
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qmk help - modified ModTap
I have only quickly tested it and it works as far as I can tell so far. I implemented it on top of achordion, because I use it anyway and it was quite simple to add on top of it. Maybe you still find the change interesting.
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List of keyboards by controller / not using pro micro
Yes, LTO_ENABLE is on and confirmed working. I just have a couple of features I'd like to use (Getreuer's accordion and layer lock -- love it!, tap dance, mouse keys, combo, leader...). My test config is here, but not functional yet, so you may see that I have for example mouse keys enabled but not used yet, but I probably will use it at some point, so I keep it enabled for now. I'm sure there is room for optimizations, but I guess I'm also spoiled by MCUs with more memory and would prefer to not have to worry about memory at all :)
What are some alternatives?
When comparing STeMCell and qmk_firmware you can also consider the following projects:
qmk_firmware - Open-source keyboard firmware for Atmel AVR and Arm USB families
zmk - ZMK Firmware Repository
crkbd - Crkbd Keymap by Manna Harbour (Extras). This keymap includes crkbd-specific hardware feature support. This repository provides additional content outside QMK.
qmk_firmware - Open-source keyboard firmware for Atmel AVR and Arm USB families
zmk - ZMK Firmware Repository
Bonsai-C - An open-source ARM-based microcontroller board
STM32CommandLine - STM32 shell, a CLI(command line interface) like linux shell, you can easily port into an embeded system, all you need is a serial com port : )
manna-harbour
roost - roost low profile ergonomic ortholinear hot-swappable kailh-choc keyboard
qmk_firmware - Open-source keyboard firmware for Atmel AVR and Arm USB families
vial-gui - Vial is an open-source cross-platform (Windows, Linux and Mac) GUI and a QMK fork for configuring your keyboard in real time.