About: If you enjoyed some of my projects, please take a moment an listen to some of the music of Bomber Goggles and Gekko Projekt. I play keyboards and write a lot of the music.

MIDI bass pedals, similar to pedals organists use to play bass notes, but instead used to play a MIDI synthesizer or sound module, have been popular for the last few decades. In addition to keyboard players, many electric bass players, such as Geddy Lee of Rush, have used them to expand the palette of bass sounds they use. But they can be quite expensive.

These were my main costs for building a set of bass pedals:

$35 Bass pedals from a Conn organ bought on eBay

$35 Shipping for the bass pedals

$44 Arduino Mega 2650 R3 controller board

$20 Sparkfun MIDI Shield

$7 9V 1000 mA AC adapter for Arduino boards

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$141 TOTAL

In addition to these I used some miscellaneous stuff like wire, solder, contact cleaner, tie wraps and cables I already had. A good place to to get the Arduino components and the MIDI Shield is the Robot Shop.