Sessile is a further exploration of "minimal" finger travel.
Probably the least amount of finger travel would be not moving them at all. That would be 10 keys...
...yielding 1023 possible combinations.
More realistically, we might consider excluding cross hand combinations so that modifiers might be used. That would give us
So, with only 5 keys on both hands, and no cross hand combos, we would have a total of 62 possible keys per layer—more than sufficient.
I wasn't quite ready to take on learning to type on that though, so just avoiding lateral reaches seemed like a start. 🙃
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Sessile uses KLP-Lame keycaps. Larger caps may be tight, especially on the bottom row. I was lazy and didn't model the tilted keycaps in the rendering, but they're much nicer for the vertical combos.
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Uses battery LIR1254. DO NOT substitute LR44.
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The high speed pins were left available for encoders and could be wired in a subsequent revision.
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Built with RMK.
Combos soon to follow upon upstream merge.Combos are here! But only 8 of them at a time. Configure them in Vial.
You can find the gerbers, bom, and cpl for JLC here. Finished boards are available here
Sessile was produced using studyofhands.
There are two firmwares for this board--zmk and rmk. Go with zmk if you want something smoother and fully featured. Use rmk if you're punk rock. 😏
Using a dongle will greatly increase battery life.
To use zmk without a dongle flash sessile_central.uf2. To use zmk with a dongle, flash sessile_peripheral.uf2 to the board and sessile_dongle.uf2 to a nice-nano-v2 (or supermini).
rmk can also be configured for dongle mode but currently only has pre-built firmware in central mode.
The zmk build has a magic/arcane key. It takes some getting used to, but is allegedly far more efficient (about half the effort) according to the new version of cyanophage that now accounts for such things (alt-click to set a magic key).
Both zmk and rmk flashed boards can be configured via their guis... Vial for rmk and ZMK Studio for zmk.
