[Joel] sent me a tip where I discovered this fun hack. It reminds me of the old pencil lead resistor trick. It looks like Ableton Live has been inspiring quite a few original controllers.

From the post: (Myspace doesn’t seem to have individual post linking)
“If you REALLY want to do this, the code is here. It is sloppily written in PASM for the Ubicom SX microcontroller running at 50Mhz addressing an ADC0808 (datasheet) 8 bit parallel ADC, because it’s the year 1993.”