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pigweed/pigweed/quickstart/bazel/336c8c106927274915d6fe90bc7b38edeede2ebe
commit
336c8c106927274915d6fe90bc7b38edeede2ebe
[log]
author
Austin Foxley <afoxley@pigweed.infra.roller.google.com>
Mon Jun 01 19:42:41 2026 -0700
committer
CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Mon Jun 01 19:42:41 2026 -0700
tree
2a741c4d551d66b3ec79606e5e8179bdac407355
parent
3b4875ed13c8e41e0d03570ec36414c25c3608d0 [diff]
roll: pigweed pw_grpc: Move ConnectionThread example to test server

The ConnectionThread implementation is likely to be customized by
downstreams, and no downstreams use it currently. Decouple from the main
Connection header by moving to test server to make it clear its an
example to start from.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/416452
Original-Revision: 22d08937dc60fcf52cb473472c00414442bc294b

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: 611c4747ead4e6..22d08937dc60fc
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8680142637597116369
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: If5b8f8247c07911efcd57055b26103ca2605a98c
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/416712
1 file changed
tree: 2a741c4d551d66b3ec79606e5e8179bdac407355
  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.