Google Git
Sign in
pigweed / pigweed / quickstart / bazel / ae0f982f16429fe56fb43f5cfa8274aa9e5c920b
commitae0f982f16429fe56fb43f5cfa8274aa9e5c920b[log] [tgz]
authorArmando Montanez <amontanez@pigweed.infra.roller.google.com>Thu Jul 24 13:49:59 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Jul 24 13:49:59 2025 -0700
tree337a15395f37a6c0c85652540ae0f83b6c2a793e
parentba0a443e3c2d68e4a0f063a4de5112e758852cb3 [diff]
roll: pigweed 21d5f2c..f9948c3 (3 commits)

f9948c3:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/306417 pw_presubmit: Enable GN formatter from Bazel
6b4a6e0:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/302535 pw_cli: Fix relative path exclusion in file collection
861126d:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/306416 pw_presubmit: Parameterize formatter initialization

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 21d5f2c456bfdb..f9948c36272736
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8708431037029220657
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I1fd48ac7e970286e094ee94459d6bde79d7f57cf
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/307914
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
1 file changed
tree: 337a15395f37a6c0c85652540ae0f83b6c2a793e
  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. AUTHORS
  18. BUILD.bazel
  19. CONTRIBUTING.md
  20. LICENSE
  21. MODULE.bazel
  22. MODULE.bazel.lock
  23. OWNERS
  24. pigweed.json
  25. README.md
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.