Google Git
Sign in
pigweed/pigweed/quickstart/bazel/4f49ed7ec21da032b76a4b29643d17a66b0d5aae
commit
4f49ed7ec21da032b76a4b29643d17a66b0d5aae
[log]
author
pigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Mon Jun 09 14:17:11 2025 -0700
committer
CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Mon Jun 09 14:17:11 2025 -0700
tree
39d2aea7e3bb0e582d3dec683e600243b290b828
parent
44db7a1e10f9a8d7ac2b94ed270b99181cfcd5d5 [diff]
roll: pigweed c6751d6..c119adf (3 commits)

c119adf:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/293592 pw_presubmit: Fix build_zephyr step
4d01a58:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/296753 roll: zephyr
5a70bcf:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/296732 .gitignore: Add .gemini

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: c6751d607bdaed..c119adf3e4ec50
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8712506235069029617
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ie437d7a76f9d8deb938e478baeb7da60a3408b04
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/296814
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: 39d2aea7e3bb0e582d3dec683e600243b290b828
  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.