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pigweed / pigweed / quickstart / bazel / 577cab50e225a06b33cf865ab6d7d734784aec2d
commit577cab50e225a06b33cf865ab6d7d734784aec2d[log] [tgz]
authorErik Gilling <konkers@pigweed.infra.roller.google.com>Thu Sep 25 18:53:28 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Sep 25 18:53:28 2025 -0700
treebc3b6455e72bc5f7f3239102f3b25dae20668393
parente70a154bd2df45499b2ce379663bc2e33491a9b3 [diff]
roll: pigweed 812c717..15af03a (4 commits)

15af03a:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/323817 pw_kernel: Refactor common logging backend code out of console
a5c3e1b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/323816 pw_kernel: Un-fork pw_status
ef047b4:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/323815 pw_kernel: Remove embedded-io deps from all but rp2350 support
cf9e8b8:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/323814 pw_tokenizer: Refactor new() out of MessageWriter trait

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 812c7177bfebeb..15af03a9436d3f
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Change-Id: If49b04915cc5a3aa57ac24ed4e6f2e4af2eadd79
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/325875
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
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1 file changed
tree: bc3b6455e72bc5f7f3239102f3b25dae20668393
  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.