Bench reference material — pinouts, module wiring, part characteristics, and other facts I keep looking up mid-build. Each page is a living document: no narrative, no build log, just the data, kept correct and cited.

Build logs live in posts; the design-in-progress pages live in projects. This section is what those two keep pointing at.

reference

Arduino Pro Micro

Pinout and specifications for the SparkFun Pro Micro (ATmega32U4)

reference

16x2 Character LCD

Pinout and wiring notes for HD44780-compatible 16x2 character LCD modules