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pigweed/pigweed/quickstart/bazel/8e8935b4738e1f50c1d9f359eb79755e933872ea
commit
8e8935b4738e1f50c1d9f359eb79755e933872ea
[log]
author
Wyatt Hepler <hepler@pigweed.infra.roller.google.com>
Mon Mar 23 16:12:49 2026 -0700
committer
CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Mon Mar 23 16:12:49 2026 -0700
tree
27e97fbb285a87ee11b1bcbd14d498591115b67c
parent
29cfdb7379945934b636ff24aaad424163d45d8a [diff]
roll: pigweed pw_async2: Remove dispatcher() from Context

Giving access to the dispatcher allows tasks to potentially post other
tasks, which my not be desirable. This API was not used in practice, so
remove it.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/388492
Original-Revision: 7cecd19c809ba85eefe79ccef2001773c6dcaa7b

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: f73851cb3f2008..7cecd19c809ba8
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8686497720756991345
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I78dcb5ff5a872fa152d598bc5fe0424464dc9e6f
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/389112
1 file changed
tree: 27e97fbb285a87ee11b1bcbd14d498591115b67c
  1. .github/
  2. .vscode/
  3. apps/
  4. modules/
  5. system/
  6. targets/
  7. tools/
  8. .bazelignore
  9. .bazelrc
  10. .bazelversion
  11. .buildifier.json
  12. .clang-format
  13. .clang-tidy
  14. .clangd.shared
  15. .gitignore
  16. .pw_console.yaml
  17. .pylintrc
  18. AUTHORS
  19. BUILD.bazel
  20. CONTRIBUTING.md
  21. LICENSE
  22. MODULE.bazel
  23. MODULE.bazel.lock
  24. mypy.ini
  25. OWNERS
  26. pw
  27. README.md
  28. workflows.json
README.md

Pigweed: minimal Bazel example

This repository contains a minimal example of a Bazel-based Pigweed project. It is a LED-blinking service (featuring RPC control!) for the Raspberry Pi Pico. It can also be run on any computer using the included simulator.

Getting the code

git clone https://pigweed.googlesource.com/pigweed/quickstart/bazel pw_bazel_quickstart
cd pw_bazel_quickstart

Dependencies

The only dependency that must be installed is Bazelisk.

Bazelisk is a launcher for the Bazel build system that allows for easy management of multiple Bazel versions.

Instructions for installing Bazelisk can be found here.

Running on the simulator

To run the simulator, type: bazelisk run //apps/blinky:simulator_blinky Then, in a new console, connect to the simulator using: bazelisk run //apps/blinky:simulator_console

Running on hardware

To start, connect a Raspberry Pi Pico, Pico 2, or debug probe via USB.

To run on the Raspberry Pi Pico, type: bazelisk run //apps/blinky:flash_rp2040 Then, in a new console, connect to the device using: bazelisk run //apps/blinky:rp2040_console

Controlling the LED

Once connected with a console, RPCs can be sent to control the LED. Try running:

device.set_led(True)
device.set_led(False)
device.toggle_led()
device.blink(blink_count=3)

Running unit tests on the host device

bazelisk test //... will run the unit tests defined in this project, such as the ones in modules/blinky/blinky_test.cc.

Running unit tests on hardware

bazelisk run @pigweed//targets/rp2040/py:unit_test_server in one console followed by bazelisk test //... --config=rp2040 will also allow running the unit tests on-device.

Next steps

Try poking around the codebase for inspiration about how Pigweed projects can be organized. Most of the relevant code in this quickstart (including RPC definitions) is inside modules/blinky, with some client-side Python code in tools/console.py.