4 layers82.9 × 64.6 mm

Open-source boards designed in KiCad by Guimli on GitHub, from 3 repositories. A board’s address here is its repository’s there.



Guimli/LongTimeKeeper
Drop-in replacement for the ST M48T58 TIMEKEEPER NVRAM (DIP-28) with a user-replaceable 1/2AA Tadiran SL-850 cell

Guimli/LongTimeKeeper
Drop-in replacement for the ST M48T58 TIMEKEEPER NVRAM (DIP-28) with a user-replaceable 1/2AA Tadiran SL-850 cell