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Description: The SparkFun Proto Pedal is an easy-to-assemble kit that makes building guitar effect pedals easier. Let’s face it, most guitar pedals start with all-too-similar circuitry – you need the input and output jacks, the bypass switch, and a barrel jack for power input. In some pedals, there may be as much wiring involved in the jacks and switch as there is in the effect itself. The SparkFun Proto Pedal takes care of the hard part and provides you with a simple infrastructure; all you need to do is decide what simple circuit to make to gain your desired effect, and you’ll be ready to rock!

With the SparkFun Proto Pedal you’ll find all the problems of a guitar pedal’s complex framework solved with true bypass and LED switching; a large, open prototyping area equivalent to a standard solderless breadboard; a small prototyping area for power regulation or reference voltages; and six positions to help organize potentiometer wiring. To make your life even easier, not only have we written a complete assembly guide for the Proto Pedal; we have also written two effect circuit guides that utilize the board’s large prototyping area. All of these guides can be found in the Documents section below.

Each Proto Pedal comes as an easy-to-assemble PTH soldering kit, and it’s up to you to solder it all together! Additionally, we highly recommend using the Proto Pedal Enclosure with this kit. It’s a standard-size cast aluminum box, which does double duty as an assembly jig to help get the jacks and switch aligned correctly. We did NOT include the enclosure with the Proto Pedal to help keep the kit affordable – and in case you already had an enclosure you wanted to use or create yourself.

Get Started with the Proto Pedal Assembly Guide

Kit Includes:

  • 1x SparkFun Proto Pedal PCB (with SMT work completed)
  • 1x Stomp Switch
  • 2x Stereo Audio Jack - ¼"
  • 1x 9 Volt Battery Snap
  • 1x DC Barrel Power Jack/Connector
  • 1x Each 4-40 Nut, Machine Screw, & Star Washer Ground Lug


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Customer Comments

  • I demand to know who came up with this product. It is beyond exactly what I need, and ingenious. Can’t wait for it to arrive

  • On Sparkfun images, there is TWO nuts for switch to tight it up correclty to proto case ( But I ordered two of these kits, both switch packs has just ONE nut. So? What is going on on these?

    • We had a mistake in our packaging process that caused the first 50 units to go out with only one nut. We are working to proactively contact and send out replacement nuts to everyone that is effected. Thank you for bringing this to our attention.

  • Does Sparkfun sell this footswitch by itself anywhere? I can’t find it.

  • Any plans for a 125B sized proto?

  • Too bad it only has 1 stomp button, would be great if it supported 2 or 3

    • My colleagues and I have spitballed the idea of adding an extra degree of control by putting an accelerometer in the chassis, maybe something like the ADXL345, which offers tap detection. You could just tape the box with your toe, rather than requiring another switch.


      There’s the part if you want to look elsewhere. Then it’s just solder and drill a new hole in the enclosure. You can add pots and switches and LEDs galore!

  • Intranet link in the 3rd paragraph :) EDIT: You fixed it

Customer Reviews

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1 of 1 found this helpful:

Best thing I ever owned!

And here’s why…it’s because it is awesome!

Related Tutorials

Proto Pedal Chassis Hookup Guide

September 22, 2016

Prepare the Proto Pedal Chassis by drilling holes for controls and painting it.

Proto Pedal Example: Programmable Digital Pedal

September 22, 2016

Building a pedal around the Teensy 3.2 and Teensy Audio shield. Changing the effect in the pedal is as easy as uploading a new sketch!

Proto Pedal Assembly and Theory Guide

September 22, 2016

Getting started with the SparkFun Proto Pedal. We'll assemble the board, then discuss some of the details of the circuit.

Proto Pedal Example: Analog Equalizer Project

September 22, 2016

Building a gyrator-based analog equalizer using the Proto Pedal.