Going to the BK Synth and Pedal Expo with Tardio last weekend, reminded me about how neat they are. A few resources for DIY guitar pedal building…

Preliminary thoughts

In a way, there are only about 6 different types of guitar pedals. Yet, there is tremendous variety in the offerings, most differentiated by microdifferences, user interface, and branding/packaging. Make of that what you will.

Analog Circuits

Alan Lanterman’s Guitar Amplification and Effects course (previously mentioned among his other music-EECS courses).
Electrosmash has some nice analysis of classic pedals

DSP

As much as I want to love analog, we live in the digital age. Open-source DSP pedal kit based on the daisy seed

(26 mar 2025) Raspberry-Pi Pico multi-effect pedal — very low part count, well explained. Has some very interesting links including to musicDSP “a collection of algorithms, thoughts and snippets, gathered for the music dsp community”