This is enclosure for a 16*2 lcd, rotary encoder and electronics for my version of deej.
Original deej version: https://github.com/omriharel/deej/
Modified version: https://github.com/YaMoef/deej
It has an usb-c opening at the back which fits one of these boards https://www.amazon.de/-/en/gp/product/B09FPZDDD9
Knob is model from Neolker and can be found here: https://www.printables.com/model/242353-diamond-knob
The author remixed this model.