roll: pigweed pw_uart: Add UartBase class

Also update the docs to explain the class hierarchy.

Original-Bug: 369678735
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/238092
Original-Revision: 7dc3b1b2a69972ae19bbe43f922aefd6dda73a3e

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: b4e75393442526..7dc3b1b2a69972
Roller-URL: https://ci.chromium.org/b/8735697225287563441
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I35c23ac94d3b7f438c166db90b8b345357a6e39b
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/showcase/sense/+/238274
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: 96460da6b8af659d345013e8175491c1ecd9f553
  1. .github/
  2. .vscode/
  3. apps/
  4. device/
  5. modules/
  6. system/
  7. targets/
  8. tools/
  9. web_app/
  10. .bazelignore
  11. .bazelrc
  12. .bazelversion
  13. .buildifier.json
  14. .clang-format
  15. .clangd.shared
  16. .gitignore
  17. .pw_console.yaml
  18. AUTHORS
  19. BUILD.bazel
  20. CONTRIBUTING.md
  21. LICENSE
  22. MODULE.bazel
  23. MODULE.bazel.lock
  24. OWNERS
  25. pigweed.json
  26. README.md
README.md

Sense

git clone https://pigweed.googlesource.com/pigweed/showcase/sense

Welcome to Pigweed Sense, a tour of key Pigweed components experienced through an imagined air quality product.

Please visit Sense: An interactive tour through Pigweed to get started.