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Instead of chaining multiple guitar effects in search of a new sound, I decided to mod just one. Using an Arduino microcontroller board + digi-pot chip (MCP41100), I was able to add a variable gating effect to a fuzz pedal fairly easily. I definitely dig the resulting sounds and a bit of rewiring should reduce the unwanted noise in the output. Switching to the MCP42100 would allow control over a second pot – perhaps the volume control for a tremolo effect.

You can find the “WavePot” sketch I used (including the necessary wiring list) here.

Download the m4v file or subscribe in iTunes

Collin Cunningham

Born, drew a lot, made video, made music on 4-track, then computer, more songwriting, met future wife, went to art school for video major, made websites, toured in a band, worked as web media tech, discovered electronics, taught myself electronics, blogged about DIY electronics, made web videos about electronics and made music for them … and I still do!


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