Batreus is a keyboard based on Atreus project and runs open source QMK firmware. The caseless design uses kailh's choc low profile swithches and is powered by ATMega32u4 chip housed in SparkFun's ProMicro board that has the awosome property of having all conponents on one side! Both schematics and gerber files are available on my gitHub.
FADE5 is analogue syntesizer controller that consists of 25 voltage dividers. Each divider is capable of switching between three input sources.
This custom midi controller makes sure that I never run out of knobs to map. With 32 analog potentiometers and built in USB interce this board is essentially plug and play.