Weather Shield review graphics Board-map.svg and power/divider/architecture diagrams: LCENJ adaptations and explanatory drawings based on SparkFun Electronics Weather_Shield hardware commit 77a360d0d9738a20ad49a2e2dd14cfd86bb9a7ed. Licensed CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0/ Original hardware source: https://github.com/sparkfun/Weather_Shield/tree/77a360d0d9738a20ad49a2e2dd14cfd86bb9a7ed/Hardware Changes: simplified diagrams; board geometry rendered with component labels, no filled ground zones or manufacturing validation. Cover is a raster rendering of the board map, not a board photograph. No endorsement is implied. review_math.py: original LCENJ educational arithmetic, MIT; copyright 2026 LCENJ. Permission is granted to use, copy, modify and redistribute it with this notice. Provided AS IS, without warranty. Original firmware remains with SparkFun and named contributors. Repository LICENSE.md states MIT for software, while example headers retain public-domain/Beerware wording. Original files are linked, not redistributed or relicensed.