“The FreeDeck aims to be a Free/OpenSource replacement for Elgatos Streamdeck and similar. It works by creating a config file with the FreeDeck Configurator, loading it onto an SDCard and inserting it into the FreeDeck. You don’t need to install any software and can use it across reboots on Windows, Linux and MacOS. This was my main reason behind this gadget. This prototype is made from:
Perfboard
Arduino Pro Micro (32u4 16mhz 5v)
2x 4051 Multiplexer
6x ssd1306 OLEDs
6x 3x4x2mm SMD buttons
SPI-SDcard Reader”