Asset attribution — INA169 review, 28 October 2026
Project: SparkFun Electronics / circuit design Shawn Hymel.
Hardware pin: https://github.com/sparkfun/INA169_Breakout/tree/42a78dbe618fe314bf3a39a4d541c42765d4087b
signal-fa.svg, signal-en.svg: functional redraw and simplified labels by LCENJ.
pcb-top.svg, pcb-bottom.svg: explicit wire/pad coordinate renderings by LCENJ;
filled polygons and decorative silk omitted. Not fabrication outputs or DRC results.
Hardware derivatives: CC BY-SA 3.0 US, as linked by Hardware/README.md:
https://creativecommons.org/licenses/by-sa/3.0/us/
Retain SparkFun attribution; distribute derivatives under the same license.

ina169-board.webp: SparkFun INA169 tutorial photograph of fitted headers.
Source tutorial: https://learn.sparkfun.com/tutorials/ina169-breakout-board-hookup-guide/all
Original: https://cdn.sparkfun.com/assets/c/b/f/5/1/528502ca757b7f18468b456a.jpg
Tutorial explicitly labels its content CC BY-SA 4.0:
https://creativecommons.org/licenses/by-sa/4.0/
Converted to WebP without crop; photograph is not LCENJ construction/testing.
Store product photography was not copied under assumed hardware license.

current_math.py: independently written LCENJ educational calculations, CC0 1.0.
https://creativecommons.org/publicdomain/zero/1.0/
Original upstream firmware is NOT this exercise; it retains the Shawn Hymel
2013 / SparkFun Beerware/public-domain wording in the pinned repository.
No attribution or license claims for TI documents are transferred to these assets.