Google Git
Sign in
pigweed/pigweed/quickstart/bazel/112ce1d3286092e79ac30a78dcffaec8b4747b73
commit
112ce1d3286092e79ac30a78dcffaec8b4747b73
[log]
author
pigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Tue Jul 15 16:26:53 2025 -0700
committer
CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Tue Jul 15 16:26:53 2025 -0700
tree
dc21ed255845b9e30b8ffe403de158588da06ba4
parent
fb1de55021ba6fea2e118a7280a439a0a4c4a542 [diff]
roll: pigweed b5bbf1d..fc1802a (4 commits)

fc1802a:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/305187 pw_kernel: Fix docs typos
b36fdb5:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/304785 pw_snapshot: Provide default for example
f261554:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/305186 .bazelrc: Add msan config to the Bazel build
ffc5076:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/304314 pw_rpc: Fix layering check violations

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: b5bbf1d90ec199..fc1802a585231f
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8709236544563125201
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I3e7108846f71fd02d0eeba0124081f2d7bdcd2e6
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/305332
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: dc21ed255845b9e30b8ffe403de158588da06ba4
  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.