I'm curious about expression foot controllers that send midi signal instead of the usual guitar lead style,especially if they have an on/off swtich such as on a normal wah pedal.
I'm an Axe fx 2 user with only one input jack,not looking to upgrade or change to an MFC for the extra pedal inputs,found a few interesting options below....
https://www.codeproject.com/Articles/38203/Arduino-Based-MIDI-Expression-Pedal
http://www.prostage.eu/midi-expression-pedal.html
http://joflaherty.org/MidiExprPedal/MidiExprPedal.html
I'm an Axe fx 2 user with only one input jack,not looking to upgrade or change to an MFC for the extra pedal inputs,found a few interesting options below....
https://www.codeproject.com/Articles/38203/Arduino-Based-MIDI-Expression-Pedal
http://www.prostage.eu/midi-expression-pedal.html
http://joflaherty.org/MidiExprPedal/MidiExprPedal.html