Comment by alnwlsn
> any jack can have a knob plugged into it to set it to a fixed value.
I'm kind of surprised he didn't start with a knob with a tiny accelerometer, mcu and battery in it to produce some sort of output signal into a stock plug depending on how the knob is oriented with respect to gravity.
Putting electronics inside the plug is nearly a mitxela trademark. https://mitxela.com/projects/flash_synth
I was wondering this - I'd buy this if I could just plug it into my existing sockets. I'm pretty sure you could get 50-100 hrs with a battery, but I wonder if you could have something that you wind-up like a mechanical watch.