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pigweed / pigweed / quickstart / bazel / fb0269d5f53432926eb920057664847c45a9c52a
commitfb0269d5f53432926eb920057664847c45a9c52a[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Tue May 27 16:25:20 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Tue May 27 16:25:20 2025 -0700
tree3a5f6aca7d9abb9679cdd52b849a420b634b5e18
parent2d45d5b3432177831a0218d7e5ac83e13e727103 [diff]
roll: pigweed 363c0e0..8b73d47 (4 commits)

23bf2b9:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/294659 pw_presubmit: Use GnGenNinja class for Python
363c0e0:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/294615 pw_ide: Intercept bazel test invocations too
e8111d7:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/294633 pw_ide: Use getReliableBazelExecutable() everywhere
8b73d47:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/294613 pw_ide: Re-enable all unit tests

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Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/294714
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1 file changed
tree: 3a5f6aca7d9abb9679cdd52b849a420b634b5e18
  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.