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# KeySeeBee
KeySeeBee is a split ergo keyboard. It is only 2 PCB (so the name) with (almost) only SMD components on it. It's only a keyboard, no LED, no display, nothing more than keys and USB.
The firmware is [Keyberon](https://github.com/TeXitoi/keyberon), a pure rust firmware.
## Features
* 44 keys, using Cherry MX or Kailh choc switches, only 1U keycaps;
* USB-C connector on the 2 sides
* TRRS cable for connecting the 2 halves (for power and UART communication between the 2 halves);
* 2 STM32F072 MCU, with hardware USB bootloader and crystal less USB;
* Only onboard SMD component (except for the switches and TRRS connector).
## Inspiration
* [Plaid](https://github.com/hsgw/plaid) for "show the components"
* [GergoPlex](https://www.gboards.ca/product/gergoplex) for "just a keyboard" and "only a PCB with SMD components"
* [Lily58](https://github.com/kata0510/Lily58) for the thumb cluster
* [Kyria](https://blog.splitkb.com/blog/introducing-the-kyria) for "don't be affraid of pinky stagger"
## Compiling and flashing
Install the complete toolchain and utils:
```shell
curl https://sh.rustup.rs -sSf | sh
rustup target add thumbv6m-none-eabi
rustup component add llvm-tools-preview
cargo install cargo-binutils
sudo apt-get install dfu-util
```
Compile:
```shell
cd firmware
cargo objcopy --bin keyseebee --release -- -O binary keyseebee.bin
```
To flash using dfu-util, first put the board in dfu mode by pressing
BOOT, pressing and releasing RESET and releasing BOOT. Then:
```shell
dfu-util -d 0483:df11 -a 0 -s 0x08000000:leave -D keyseebee.bin
```
The fist time, if the write fail, your flash must protected. To unprotect:
```shell
dfu-util -d 0483:df11 -a 0 -s 0x08000000:force:unprotect -D keyseebee.bin
```
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