Keyboard Builders' Digest / Projects
Cheapino
A cheap to build split: Cheapino by infinetelurker.
Published April 6, 2023
Out of 150,000 readers, only 54 support this blog. Will you join Micah Alpern, TurkeyBoards, and splitkb.com?
Thomas Haukland aka tompi/infinetelurker shared his Cheapino, a relatively cheap split with only one controller (and Japanese duplex matrix).
This is the result of really enjoying building keyboards but not wanting to spend that much money on it. The PCB is reversible, connected using rj45, and utilizes a Japanese duplex matrix, so only one MCU is needed – Thomas.
In fact, it only uses 7 of the rj45 wires to support 18 switches and an encoder on the right side.
I can take out/plugin the rj45 without worrying about shorting something :)
As commenters have pointed out, the design could be improved by using 5-pin switches, and there are even cheaper alternatives if price is a concern. E.g. boards under the magical 100x100mm threshold (Cheapis), but even handwiring combined with cardboard plates – but nice try anyway. :)
And thanks for the kbd.news reference!
Resources
Published on Thu 6th Apr 2023. Featured in KBD #119 (source).
Related
MiRage MK2
Zack Freedman talks about his MiRage Mk2, an ortho split with eInk display.
Nemm keyboard
Nemm is a wireless split keyboard designed by u/kien242tran.
Swepp
Sebastian Stumpf's Swepp is a splayed Sweep, a split keyboard with 34 keys.
Silakka44
Squalius-cephalus shared the split Silakka44 with reversible hotswap PCB.