Google Git
Sign in
pigweed / pigweed / quickstart / bazel / db6e56285f0039834e15c5cffa5e6d79e900fc85
commitdb6e56285f0039834e15c5cffa5e6d79e900fc85[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Sun Sep 07 06:35:42 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Sun Sep 07 06:35:42 2025 -0700
tree13780e02a21031a6eba826d0df56c03cd4e8a026
parent9b6f5aa6870bf2fb371a87494444a00e2becefb0 [diff]
roll: pigweed 347d88e..705a4a8 (5 commits)

705a4a8:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320752 roll: luci
dfc48c9:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320672 roll: fuchsia-infra-bazel-rules 27e1046..8c8da21 (60 commits)
9ab5264:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320213 pw_async2: Have user manually pend coin slot first
be62dae:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320412 pw_async2: Fix typos in codelab
bce242b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/320334 pw_async2: Update solution callouts

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 347d88e3a2d3ac..705a4a8e890874
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8704381502330968945
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ifea00c0e1c50cfc2772d324c2e356ae72e101dd4
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/320674
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: 13780e02a21031a6eba826d0df56c03cd4e8a026
  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. pigweed.json
  27. 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.