JJ Code

These are serial numbers for labeling my circuit boards so I can keep some documentation about them.

Date	Code	Note
2026-04-26	JJ005	microcontroller battery power circuit from Space Drop
2026-04-12	JJ004	AoE ex 1.10, voltage divider and Thevenin equivalent
2026-03-24	JJ003	3 to 18 mA load with ammeter interface
2025-12-15	JJ002	three momentary push buttons into female pin header
2025-12-02	JJ001	interface to a meter movement