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Designed and shared by pridesteak aka ohemaag, the Raven is a wireless true split keyboard powered by nice!nano (or supermini nrf52840) controllers.
I finally finished up all the files for my second keyboard, the Raven! I named it the Raven because it looks like wings to me, and my original build is purple and black like the reflection of a Raven's wings – pridesteak.
Instead of standoffs, this board uses rubber bumpers on the bottom of the PCB to prevent it from slipping inside the case.
Features
42 keys (6x3+3)
MX switches, soldered
wireless via nice!nano v2 / supermini nrf52840 controllers
2x110 mAh battery, reset button
3D-printed case
ZMK firmware
Raven utilizes 2 supermini nrf52840 microcontrollers (nice!nano v2 alternative) and 2x 110 mAh 3.7v batteries.
To improve acoustics, the author added a thin layer of silicone at the bottom of the case; "this actually worked very well to give the board a deeper sound and reduce case noise. The silicone also gives the board a little bounce in the case, which is nice. The little holes in the bottom of the case keep the silicone layer better in place.
Co-designer Stephen Cheng reviews the main design and ergonomics decisions of the eight year journey to bring Glove80 split contoured ergonomic keyboard to mass manufacturing.