MIDI Expression Pedal EX3. Programmable and configurable. An autonomous MIDI expression pedal for sending CC events (e.g. Volume or Modulation), Pitch Bend or Aftertouch. : Amazon.co.uk: Musical Instruments & DJ
Expression pedal with a toe switch to MIDI
Arduino-Based MIDI Expression Pedal - CodeProject
Express Yourself: Expanding Creativity with the EV-1-WL - BOSS Articles