STeMCell
qmk_firmware
STeMCell | qmk_firmware | |
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13 | 2 | |
113 | 0 | |
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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 |
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STeMCell
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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 moreā¦
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
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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?
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.