ErgoMechKeyboards

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Ergonomic, split and other weird keyboards

Rules

Keep it ergo

Posts must be of/about keyboards that have a clear delineation between the left and right halves of the keyboard, column stagger, or both. This includes one-handed (one half doesn't exist, what clearer delineation is that!?)

i.e. no regular non-split¹ row-stagger and no non-split¹ ortholinear²

¹ split meaning a separation of the halves, whether fixed in place or entirely separate, both are fine.
² ortholinear meaning keys layed out in a grid

No Spam

No excessive posting/"shilling" for commercial purposes. Vendors are permitted to promote their products/services but keep it to a minimum and use the [vendor] flair. Posts that appear to be marketing without being transparent about it will be removed.

No Buy/Sell/Trade

This subreddit is not a marketplace, please post on r/mechmarket or other relevant marketplace.

Some useful links

EMK wiki
Split keyboard compare tool
Compare keycap profiles Looking for another set of keycaps - check this site to compare the different keycap profiles https://www.keycaps.info/
Keymap database A database with all kinds of keymap layouts - some of them fits ergo keyboards - get inspired https://keymapdb.com/

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Blackpill microcontroller always in Boodloader mode (feddit.de)

submitted 1 year ago by [email protected] to c/[email protected]

1 comments fedilink hide all child comments

I am not sure where to ask this, so here it goes:

I was soldering my new Cantor split keyboard, which is using two STM32F401 Blackpill microcontrollers. I had to resolder some parts on the left side, so the soldering there is sloppy. Now when I plug in this side, the board seems to be in flashing/Boodloader-mode instantly without me having to press the BOOT0+NRST botton combo. This causes the left side being unable to "type" because it's expecting software.

What pins (or switches?) should I take a look at? What could cause the Blackpill to be in Bootloader mode all the time? I tried to read the Documentation of the board, but I'm afraid all of it went right over my head...

Thanks in advance!

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[–] [email protected] 5 points 1 year ago

I know it may seem obvious, but did you check the pins of the BOOT0 switch itself and the nearby capacitor? A stray bit of solder there could cause the switch to appear always held down by shorting either the cap or the switch. It doesn't appear that the boot0 line goes anywhere other than there and the main microcontroller so the issue is likely there.