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commita9d81abed55eb2599e1e2bc00d893a90d85f025d[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Tue Oct 28 13:11:31 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue Oct 28 13:11:31 2025 -0700
treedcc07ac2e448c658a0c62bfdc6ab49176b7e3d3c
parent4dc9cbc6d2ade3e428e1192a9fa1aef4a6e5d180 [diff]
roll: pigweed 4edac8b..2b4d6d0 (4 commits)

2b4d6d0:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/338974 pw_presubmit: Allow internal namespaces under pw_*
13901b5:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/334735 pw_snapshot: Display metrics in processor
f9dad19:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/338752 pw_snapshot: Add tokenized log message to processor_test
129b3e6:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/338598 pw_kernel: Fix `channel_transact` parameters

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 4edac8b153b0c0..2b4d6d09ef3c9d
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8699736131287627649
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Change-Id: I028186ca41eff1d1f0f6b6e9a6e7f400c08af44d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/339015
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: dcc07ac2e448c658a0c62bfdc6ab49176b7e3d3c
  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.