Google Git
Sign in
pigweed / pigweed / quickstart / bazel / 875ca6b5e1da2b0d310b0c33af3958be37a523f6
commit875ca6b5e1da2b0d310b0c33af3958be37a523f6[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Fri Jun 27 15:49:18 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Jun 27 15:49:18 2025 -0700
tree7597b5e497a719dd41f3505ea4c490ef2a7d8024
parent88fb9b8b3c6b1e273965a2d4728b6aeb1744fe98 [diff]
roll: pigweed c66eb85..d0ed968 (4 commits)

d0ed968:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/301372 pw_build: Add Workflows config validator
498c606:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/295212 pw_build: Add Bazel build driver
aeed7fa:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/301078 Revert "pw_protobuf: Only generate `kMaxEncodedSizeBytes` in constrained structs"
e8f5558:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/297213 pw_build: Introduce workflows proto and entry point

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: c66eb854d32181..d0ed968fe3b5ac
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8710869659528466241
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Icb080c2440bffd0210c72c2cb00c6b039e12f83a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/301338
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: 7597b5e497a719dd41f3505ea4c490ef2a7d8024
  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.