DIY Split wireless ergonomic keyboard with rotary encoters. Combination of 3 different projects, 3D model modified to house rotary encoders. It runs on https://zmkfirmware.dev/ this means it's completely wireless, both halves talk with each other via Bluetooth Low Energy protocol, and one of them is additionally connected to the host (PC/phone), also via BLE. Microcontroller has been taken from this project https://github.com/joric/nrfmicro - it had to be hand soldered and flashed with bootloader and software