Phaethon - Solar powered through-hole PCB Kit. Prototype final!

Impressed by the beauty of the Lumberjack keyboard, I wanted to make a wireless version for myself, it's called Phaethon.


Specs:
* 5x12 (split Preonic) layout, full grid or 2x2u spacebars.
* Fit in 60% tray mount case.
* Wireless USB receiver and Bluetooth 5.2 from receiver.
* Built-in solar battery charger, works with artificial light
* Ultra low energy consumption: ~1 year without any light or doesn't need to plug in the charger in a bright room.
* Switch footprint: Cherry MX, Cherry low profile, TTC low profile (KS32).
* Supported stabilizer: Cherry PCB Screw-in, Costar Plate mount for low profile.
* Assembled MCU + Solar board and USB receiver.
* All through hole components for keyboard PCB.

Firmware:
* ZMK

Price:
* 149$

Production number: ≤100.

IC Form: https://forms.gle/ZUm72Ac8P2t9jBvB8

[07/08/2022] Due to the PCB seeming too complicated for mass production and global chip shortage, I regret it will stop at prototype for now.

Design photos:


Layout:


Receiver:


Solar and MCU PCB compatible with arduino pro micro and atmega32a pinout.