I thought folks here would be interested in my approach to hardware control of Rack modules, so here’s a video: https://youtu.be/BWebGwcX43E
The key feature here is the synchronization between connected control panels and what you see in Rack. Ports are replaced by buttons, pushing an input and output button simultaneously connects the corresponding ports. The buttons are then illuminated in the same color as the cable.
I started designing these panels before Rack v2, so the panels are laid out to match Fundamental modules from Rack v1.
Also very important, this isn’t vanilla Rack, I’ve added a few hooks, mainly around cable management, to keep port connections synchronized between Rack and the controllers. The module in the video labeled ‘HidDirector’, which keeps the connected panels synchronized with the modules, only works with this modified version of the Rack source code.
I think this approach isn’t for everyone. If you can afford real modules, you might be better of with the real thing. On the other hand, this approach has the following benefits over regular modules: low cost, patch save/load and easy polyphony.
Hey @Icet, I used TeensyLCs for this initial batch of panels, but I’m thinking of switching to the Raspberry Pi Pico because they’re so much cheaper. Only catch is I’ll need to use an analog multiplexer or two as they only have 3-4 ADC inputs.
thank you very much for the feedback. I had not considered the Raspberrys at all until now. Last week I ordered an Arduino Micro with breadboard and some multiplexers for experimenting and testing. It has a MIDI USB interface on board and should be recognized in the software as a Class Compliant MIDI device. If this works so far I think about cheaper controllers for the rack modules. The Teensys have, I think, the USB Midi interface directly on board, but are so hard to get.