I have some Eurorack synthesizer equipment that I would like to control with my Flipper. Specifically, I want to connect the Flipper’s GPIO to Eurorack Control Voltage (CV) inputs. Then I will program the Flipper to modulate the GPIO in response to radio signals and all the other fun things it can sense, so the synthesizer responds to the environment it senses via the Flipper. I’m trying to figure out if this will work with direct connections, or if I’ll need to do some external processing to get a compatible signal
Eurorack CV uses a 5V or 10V range over 1/8" (3.5mm) TS patch cables. Common voltage arrangements include -2.5V to +2.5V, -5V to +5V and 0V to +10V
Flipper’s GPIO is a"3.3 CMOS Level, Input 5V tolerant, Up to 20 mA per digital pin." Does this mean it can do -3.3V to +3.3V? That would give me a 6.6V range to work with, which should be plenty.
There are some projects that connect Arduino to Eurorack. Do Arduino expansion boards/tools generally work with Flipper?
Finally, are there any Flipper community projects around Eurorack CV (or MIDI) that I should be aware of? Searching this forum and the discord didn’t turn up much.