He’d previously automated a slew of his pedals that were already built to take control-voltage signals. This wasn’t ’s first foray into pedal automation, however. Pretty slick, and he can now control it live with his iPad, or sequence the knobs with the rest of their MIDI system. He replaced all of the controls with a DAC and some analog switches, coded up some MIDI logic in an ATmega328, and built himself a custom MIDI-controlled guitar pedal. Tearing into his EHX Pitch Fork pedal, discovered that all of the external knob controls were being read by ADCs on the chip that did all of the processing. If only there were little robot hands that could turn the knobs (metaphorically, sorry) during the performance… But when your music involves changing settings more than a few times in the middle of a song, it can get distracting.
And guitarists are notorious knob-twiddlers: they love their effects pedals.
