Google Git
Sign in
pigweed / pigweed / quickstart / bazel / 2359a10f2267aa79ea0bc2101c440d80e7544b6b
commit2359a10f2267aa79ea0bc2101c440d80e7544b6b[log] [tgz]
authorpigweed-roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>Wed Mar 26 16:37:12 2025 -0700
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Mar 26 16:37:12 2025 -0700
tree906c30ae77e94a1212b3bde552ba238e8d0b190f
parent6b4c16344236604da15152ddf83ea4d2df379cf5 [diff]
roll: pigweed a63c499..6be7274 (3 commits)

6be7274:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/279113 pw_ide: Select first target if none is set
7941b5b:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/279492 Revert "pw_tokenizer: Add support for nested tokenization in C++"
8ee9b49:https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/279532 pw_protobuf_compiler: Rephrase import statement

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: a63c4996e41059..6be7274b6461d8
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8719292186340659041
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I6aa8d52470599414c58f5e4892a3cd0df957b2fd
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/279692
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
1 file changed
tree: 906c30ae77e94a1212b3bde552ba238e8d0b190f
  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.