über-Wah pedal: I opened up my optical morley wah pedal and installed a second emiiter-receiver pair on the circuit board. Reading the voltage level with an ADC-equipped microcontroller connected to my effects processor (Pod 2.0), the spiffed-up pedal can now control volume, tremolo, flange, reverb, and yes - even wah... (and the original analog wah functionality still works!)

See my code to share page for some C header files that help with MIDI and pod related programming.

click here (MP3, 2.3MB) to hear what happened when I programmed the uberwah to emit NOTEON MIDI messages and connected it to a piano synth...