My first-ever series detailing the design and build of a microcontroller

Geeky gifts for my godson and his dad that take a lot of time to build but seem to be quite easy to "crack". 

Simple but great circuits based on legendary guitar effect pedals anyone could build using only a handful of parts

Projects that were designed with TinkerCAD and printed with a dual-extruder FlashForge Dreamer printer, or carved with my 2030 CNC hobby mill

Projects that employ a microcontroller to accomplish all sorts of useful and useless tasks

Projects that consist only of op-amps, comparators, digital ICs, and other discrete parts to work

Things that broke, issue diagnostics, and description of the repair and everything in between