Keyboard Builders' Digest / Projects
KaSe keyboard
An Atreus-inspired monoblock keyboard by Mae Pugin: the wireless KaSe with OLED.
Published December 2, 2025
This free blog runs thanks to just 54 supporters - like Gordon Diggs, Anatolii Smolianinov, and splitkb.com. Join them now!
Shared by Mae Pugin aka mournepousse/harrael, the KaSe is an open-source angled unibody keyboard inspired by the Atreus62.
I’ve been slowly hacking on a custom keyboard project and I finally feel it’s in a state where I can share it and get feedback. It’s called KaSe, and it’s built around an ESP32-S3 with both USB HID and Bluetooth HID, plus a small OLED display and multi-layer keymaps – harrael.
Features
- 64 keys
- MX switches, hotswap
- ESP32-S3 controller
- OLED
- wireless
- custom firmware
Resources
In addition to the PCB and firmware, the project comes with a desktop config/manager tool.
- https://github.com/mornepousse/KaSe_PCB
- https://github.com/mornepousse/KaSe_Code
- https://github.com/mornepousse/KaSe_soft
Published on Tue 2nd Dec 2025. Featured in KBD #203.
Related
btrfld v2
Evalyn Emmerich released the next iteration of her folding btrfld – now with PCBs.
Micro Journal
A series of writerdecks: Micro Journal for distraction-free writing – designed by Un Kyu Lee.
CB34S
CB34S is a 34-key columnar staggered Choc V1 monoblock split keyboard by Bubbleology – with Nice!Nano and Nice!View.
Zerosprey42
Leo Lou's Zerosprey42 is an open-source 40% travel keyboard – remix of the Ospray.