DeftAudio, aka Andrei Kudryavtsev has created an 8×14 1U MIDI and Audio Interface based on the Teensy 4.1.

With 8×8 5-pin MIDI DIN in/out, plus six MIDI TRS outs (which can also be configured as 5V Trigger out or Sync out for controlling Eurorack modular gear, drum machines, or analog synthesizers), as well as USB MIDI and a 2×2 audio interface, which seems almost absurd for a kit that starts at $25 for the main PCB. An OLED display and two rotary encoders provide the interface.

Best of all the project is completely open-source, with schematics, firmware, and even the enclosure available on GitHub. The “Complete Electronics” kit (bring your own Teensy and front panel) is just $40, while the fully assembled model will set you back $225 — still a steal for this level of functionality. Check out the video below, then head over to Tindie to pick up a kit!