mirror of
https://github.com/espressif/esp-idf.git
synced 2026-04-27 19:13:21 +00:00
docs: add documentation about simulation by Wokwi
This commit is contained in:
Juraj Michalek
@@ -10,6 +10,7 @@ Resources
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third-party-tools/platformio
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third-party-tools/clion
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third-party-tools/wokwi
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third-party-tools/visualgdb
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For inquiries related to these third-party tools, we recommend seeking assistance from the respective tool's support channels or user communities.
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@@ -0,0 +1,225 @@
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.. _wokwi:
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Wokwi
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#####
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:link_to_translation:`zh_CN:[中文]`
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What Is Wokwi?
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~~~~~~~~~~~~~~
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`Wokwi <https://wokwi.com/esp32>`__ is an online electronics simulator. You can use it to simulate most of the Espressif chips and supported parts and sensors.
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Wokwi provides a browser-based interface and IDE integrations that offer a simple and intuitive way to start coding your next IoT project within seconds. It supports ESP-IDF projects and provides Wi-Fi simulation, virtual logic analyzers, advanced debugging with GDB and screenshot capture for automated testing.
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Key Features
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~~~~~~~~~~~~
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Wokwi provides many features for embedded development:
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- **Wi-Fi Simulation**: Test IoT projects without physical hardware.
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- **Virtual Logic Analyzers**: Debug digital signals and timing.
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- **Advanced GDB Debugging**: Set breakpoints and inspect variables.
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- **VS Code Integration**: Develop and simulate directly from VS Code.
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- **CLion Plugin**: Professional development workflow with `CLion <https://plugins.jetbrains.com/plugin/23826-wokwi-simulator>`__.
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- **Screenshot Capture**: Automated visual testing for CI/CD.
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- **Custom Chips API**: Build your own virtual chips in addition to main MCU.
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.. note::
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Simulation results may differ from real hardware. Always test your project on actual hardware before deployment.
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Installation
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~~~~~~~~~~~~
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Wokwi can be used in three ways:
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**Browser-based (Online)**
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Visit `wokwi.com <https://wokwi.com/esp32>`__ to start simulating immediately in your browser. No installation required.
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**VS Code Extension**
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Install the `Wokwi for VS Code extension <https://docs.wokwi.com/vscode/getting-started>`__ to integrate simulation directly into your development environment.
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**CLion Plugin**
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Install the `Wokwi Simulator plugin <https://plugins.jetbrains.com/plugin/23826-wokwi-simulator>`__ for CLion to use Wokwi with professional IDE features and embedded development tools.
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Configuration
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~~~~~~~~~~~~~
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**Setting Up a Project with wokwi-cli**
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For local development and CI/CD integration, you can use ``wokwi-cli`` to configure your ESP-IDF project for Wokwi simulation.
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To install ``wokwi-cli``, please refer to the `official Wokwi CLI installation guide <https://docs.wokwi.com/wokwi-ci/cli-installation>`__.
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Once installed, run the following command in your ESP-IDF project directory:
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.. code-block:: bash
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wokwi-cli init
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The ``wokwi-cli init`` command will prompt you with a few questions and automatically create the necessary configuration files in your project directory.
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Wokwi projects are configured using two main files:
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- **wokwi.toml**: A configuration file that specifies firmware paths, ELF files for debugging, and simulator settings.
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- **diagram.json**: A circuit diagram file that describes the board, connected components, and their wiring.
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For detailed information about configuration files, see the `Wokwi project configuration guide <https://docs.wokwi.com/vscode/project-config>`__.
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You are encouraged to read the official `ESP32 Simulation guide <https://docs.wokwi.com/guides/esp32>`__ to understand which boards, languages, and features are supported by Wokwi.
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IDE Integration
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~~~~~~~~~~~~~~~
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**VS Code**
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To use Wokwi with VS Code:
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1. Install the `Wokwi for VS Code extension <https://marketplace.visualstudio.com/items?itemName=wokwi.wokwi-vscode>`__.
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2. Create ``wokwi.toml`` and ``diagram.json`` files in your project.
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3. Press ``F1`` and select ``Wokwi: Start Simulator`` to begin simulation.
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**CLion**
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The `Wokwi Simulator plugin for CLion <https://plugins.jetbrains.com/plugin/23826-wokwi-simulator>`__ provides:
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- Integration with CLion's embedded development tools.
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- Professional debugging workflow.
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- Support for ESP-IDF projects.
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- Seamless simulator access from the IDE.
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**Espressif IDE**
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Version 2.9.0 and later of `Espressif IDE <https://developer.espressif.com/blog/how-to-use-wokwi-simulator-with-espressif-ide/>`__ includes Wokwi integration:
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- Build applications in the IDE.
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- Flash directly to the Wokwi simulator.
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- View serial monitor output in the IDE console while communicating with the simulator.
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Testing with pytest-embedded
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Wokwi integrates with ESP-IDF's testing framework through `pytest-embedded-wokwi <https://pypi.org/project/pytest-embedded-wokwi/>`__. This enables:
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- Automated unit and integration testing.
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- CI/CD pipeline integration with GitHub Actions.
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- Screenshot validation for visual testing.
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- Regression testing without physical hardware.
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**Basic Usage**
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Run Wokwi simulations from the command line with ``wokwi-cli``:
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.. code-block:: bash
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# Run simulation and expect specific text in output
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wokwi-cli --timeout 5000 --expect-text "Hello World"
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# Take a screenshot after 4.5 seconds
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wokwi-cli --screenshot-part esp --screenshot-time 4500 --screenshot-file screenshot.png
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# Save serial output to a file
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wokwi-cli --serial-log-file output.log --timeout 10000
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For a complete project template with CI/CD configured, see the `ESP-IDF Project Template with CI and Wokwi <https://github.com/wokwi/wokwi-esp-test-template>`__.
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**Related Resources**
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- `pytest-embedded-wokwi Documentation <https://pypi.org/project/pytest-embedded-wokwi/>`__
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- `ESP-IDF Tests with Pytest Guide <https://docs.espressif.com/projects/esp-idf/en/stable/esp32/contribute/esp-idf-tests-with-pytest.html>`__
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- `pytest-embedded 2.x Documentation <https://docs.espressif.com/projects/pytest-embedded>`__
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Advanced Features
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~~~~~~~~~~~~~~~~~
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**Debugging**
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Wokwi provides built-in GDB server support for advanced debugging:
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1. Add to ``wokwi.toml``:
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.. code-block:: toml
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[wokwi]
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version = 1
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firmware = 'build/your_app.bin'
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elf = 'build/your_app.elf'
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gdbServerPort = 3333
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2. Create a VS Code launch configuration (``.vscode/launch.json``):
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.. code-block:: json
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{
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"version": "0.2.0",
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"configurations": [
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{
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"name": "Wokwi GDB",
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"type": "cppdbg",
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"request": "launch",
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"program": "${workspaceFolder}/build/your_app.elf",
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"cwd": "${workspaceFolder}",
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"MIMode": "gdb",
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"miDebuggerPath": "xtensa-esp32-elf-gdb",
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"miDebuggerServerAddress": "localhost:3333"
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}
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]
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}
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3. Start simulator with ``F1`` → ``Wokwi: Start Simulator and Wait for Debugger``.
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4. Press ``F5`` in VS Code to attach the debugger.
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For more details, see the `Wokwi debugging guide <https://docs.wokwi.com/guides/debugger>`__.
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**Wi-Fi Networking**
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Wokwi supports Wi-Fi simulation for IoT projects. See the `ESP32 Wi-Fi networking guide <https://docs.wokwi.com/guides/esp32-wifi>`__ for information on:
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- Connecting to Wi-Fi networks.
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- MQTT, HTTP, and HTTPS protocols.
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- WebSocket communication.
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- Network testing without physical hardware.
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**CI/CD Integration**
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Automate testing in GitHub Actions using Wokwi:
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.. code-block:: yaml
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- name: Simulate & take screenshot
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run: |
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wokwi-cli \
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--screenshot-part "esp" \
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--screenshot-time 5000 \
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--screenshot-file "screenshot-${{ matrix.board }}.png" \
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"boards/${{ matrix.board }}"
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- name: Upload screenshot
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uses: actions/upload-artifact@v4
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with:
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name: screenshot-${{ matrix.board }}
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path: screenshot-${{ matrix.board }}.png
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This enables automated visual regression testing and ensures consistent behavior across commits.
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Resources
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~~~~~~~~~
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**Videos**
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- `DevCon24 - Flash Less, Do More: The Magic of Virtual Hardware <https://youtu.be/8PTYnNFK1pw>`__: Learn about the power of simulation for embedded development
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**Documentation**
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- `Wokwi Documentation <https://docs.wokwi.com>`__: Comprehensive resource for all Wokwi features
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- `ESP32 Simulation Guide <https://docs.wokwi.com/guides/esp32>`__: Supported boards, languages, and features
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- `ESP32 Wi-Fi Networking <https://docs.wokwi.com/guides/esp32-wifi>`__: Wi-Fi simulation for IoT projects
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- `VS Code Integration <https://docs.wokwi.com/vscode/getting-started>`__: Setup and configuration guide
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- `CLion Plugin <https://plugins.jetbrains.com/plugin/23826-wokwi-simulator>`__: CLion integration details
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- `Wokwi Articles on Developer Portal <https://developer.espressif.com/tags/wokwi/>`__: Collection of tutorials and use cases
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**Getting Help**
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- `Wokwi Community <https://discord.gg/wokwi>`__: Join the Wokwi Discord server to get help from the community
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@@ -10,6 +10,7 @@
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|
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third-party-tools/platformio
|
||||
third-party-tools/clion
|
||||
third-party-tools/wokwi
|
||||
third-party-tools/visualgdb
|
||||
|
||||
有关这些第三方工具的问题，请寻求该工具的支持渠道或用户社区的帮助。
|
||||
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@@ -0,0 +1,225 @@
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.. _wokwi:
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Wokwi
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#####
|
||||
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||||
:link_to_translation:`en:[English]`
|
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Wokwi 是什么？
|
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~~~~~~~~~~~~~~~~~~~
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`Wokwi <https://wokwi.com/esp32>`__ 是一款在线电子仿真器。它支持仿真多数乐鑫芯片以及一系列外围设备和传感器。
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通过基于浏览器的操作界面和 IDE 集成，Wokwi 能够帮助你快速开启 IoT 项目编程，支持 Wi-Fi 仿真、虚拟逻辑分析仪、高级 GDB 调试以及自动化测试用的屏幕截图捕捉等功能。
|
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|
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核心功能
|
||||
~~~~~~~~~~~~
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||||
|
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Wokwi 提供一系列面向嵌入式开发的功能：
|
||||
|
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- **Wi-Fi 仿真**：无需物理硬件即可测试 IoT 项目。
|
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- **虚拟逻辑分析仪**：调试数字信号和时序。
|
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- **高级 GDB 调试**：设置断点和查看变量。
|
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- **VS Code 集成**：直接在 VS Code 中进行开发和仿真。
|
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- **CLion 插件**：通过 `CLion 插件 <https://plugins.jetbrains.com/plugin/23826-wokwi-simulator>`__ 实现专业开发流程。
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- **屏幕截图捕获**：支持 CI/CD 自动化视觉测试。
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- **自定义芯片 API**：可在主 MCU 外构建自定义虚拟芯片。
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.. note::
|
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|
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仿真结果可能与实际硬件不同。在部署之前，请务必在实际硬件上测试你的项目。
|
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安装
|
||||
~~~~
|
||||
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Wokwi 提供三种使用方式：
|
||||
|
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**基于浏览器（在线使用）**
|
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访问 `wokwi.com <https://wokwi.com/esp32>`__ 即可直接在浏览器中开始仿真，无需安装任何软件。
|
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**VS Code 扩展**
|
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安装 `Wokwi for VS Code 扩展 <https://docs.wokwi.com/vscode/getting-started>`__，可在开发环境中直接进行仿真。
|
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|
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**CLion 插件**
|
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安装 `Wokwi Simulator 插件 <https://plugins.jetbrains.com/plugin/23826-wokwi-simulator>`__，可在 CLion 中结合专业 IDE 功能进行嵌入式开发。
|
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配置说明
|
||||
~~~~~~~~
|
||||
|
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**使用 wokwi-cli 设置项目**
|
||||
|
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若要进行本地开发或 CI/CD 集成，可使用 ``wokwi-cli`` 为 ESP-IDF 项目配置 Wokwi 仿真。
|
||||
|
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安装 ``wokwi-cli`` 请参阅 `Wokwi CLI 官方安装指南 <https://docs.wokwi.com/wokwi-ci/cli-installation>`__。
|
||||
|
||||
安装完成后，在 ESP-IDF 项目目录下执行：
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
wokwi-cli init
|
||||
|
||||
该命令会引导你完成若干设置，并自动在项目目录中生成必要的配置文件。
|
||||
|
||||
Wokwi 项目主要通过两个文件进行配置：
|
||||
|
||||
- **wokwi.toml**：配置文件，用于指定固件路径、调试用 ELF 文件及仿真器设置。
|
||||
- **diagram.json**：电路图文件，用于描述开发板、连接组件及其布线关系。
|
||||
|
||||
有关配置文件的详细信息，请参阅 `Wokwi 项目配置指南 <https://docs.wokwi.com/vscode/project-config>`__。
|
||||
|
||||
建议同时阅读官方 `ESP32 仿真指南 <https://docs.wokwi.com/guides/esp32>`__，了解 Wokwi 支持的具体开发板、编程语言及相关功能。
|
||||
|
||||
IDE 集成
|
||||
~~~~~~~~~~~~~~~
|
||||
|
||||
**VS Code**
|
||||
|
||||
在 VS Code 中使用 Wokwi 的步骤：
|
||||
|
||||
1. 安装 `Wokwi for VS Code 扩展 <https://marketplace.visualstudio.com/items?itemName=wokwi.wokwi-vscode>`__。
|
||||
2. 在项目中创建 ``wokwi.toml`` 和 ``diagram.json`` 文件。
|
||||
3. 按下 ``F1``，选择 ``Wokwi: Start Simulator`` 即可开始仿真。
|
||||
|
||||
**CLion**
|
||||
|
||||
`CLion 的 Wokwi Simulator 插件 <https://plugins.jetbrains.com/plugin/23826-wokwi-simulator>`__ 提供以下功能：
|
||||
|
||||
- 与 CLion 嵌入式开发工具集成。
|
||||
- 专业的调试工作流。
|
||||
- 支持 ESP-IDF 项目。
|
||||
- 可从 IDE 内无缝访问仿真器。
|
||||
|
||||
**Espressif IDE**
|
||||
|
||||
`Espressif IDE <https://developer.espressif.com/blog/how-to-use-wokwi-simulator-with-espressif-ide/>`__ 2.9.0 及以上版本已内置 Wokwi 集成：
|
||||
|
||||
- 可在 IDE 中构建应用程序。
|
||||
- 支持直接烧录到 Wokwi 仿真器。
|
||||
- 可在 IDE 控制台中查看串口监视器输出，并与仿真器进行通信。
|
||||
|
||||
使用 pytest-embedded 进行测试
|
||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
|
||||
Wokwi 通过 `pytest-embedded-wokwi <https://pypi.org/project/pytest-embedded-wokwi/>`__ 与 ESP-IDF 测试框架集成。实现以下功能：
|
||||
|
||||
- 自动化单元测试和集成测试。
|
||||
- 与 GitHub Actions 的 CI/CD 流水线集成。
|
||||
- 支持屏幕截图验证的视觉测试。
|
||||
- 无需物理硬件的回归测试。
|
||||
|
||||
**基本用法**
|
||||
|
||||
使用 ``wokwi-cli`` 从命令行运行 Wokwi 仿真：
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
# 运行仿真并期望输出中包含特定文本
|
||||
wokwi-cli --timeout 5000 --expect-text "Hello World"
|
||||
|
||||
# 在 4.5 秒后截取屏幕截图
|
||||
wokwi-cli --screenshot-part esp --screenshot-time 4500 --screenshot-file screenshot.png
|
||||
|
||||
# 将串口输出保存到文件
|
||||
wokwi-cli --serial-log-file output.log --timeout 10000
|
||||
|
||||
有关包含 CI/CD 配置的完整项目模板，请参阅 `ESP-IDF Project Template with CI and Wokwi <https://github.com/wokwi/wokwi-esp-test-template>`__。
|
||||
|
||||
**相关资源**
|
||||
|
||||
- `pytest-embedded-wokwi 文档 <https://pypi.org/project/pytest-embedded-wokwi/>`__
|
||||
- `ESP-IDF pytest 指南 <https://docs.espressif.com/projects/esp-idf/zh_CN/v5.5.2/esp32/contribute/esp-idf-tests-with-pytest.html>`__
|
||||
- `pytest-embedded 2.x 文档 <https://docs.espressif.com/projects/pytest-embedded>`__
|
||||
|
||||
高级功能
|
||||
~~~~~~~~~~~~~~~~~
|
||||
|
||||
**调试**
|
||||
|
||||
Wokwi 支持内置 GDB 服务器，可用于高级调试：
|
||||
|
||||
1. 在 ``wokwi.toml`` 中添加以下配置：
|
||||
|
||||
.. code-block:: toml
|
||||
|
||||
[wokwi]
|
||||
version = 1
|
||||
firmware = 'build/your_app.bin'
|
||||
elf = 'build/your_app.elf'
|
||||
gdbServerPort = 3333
|
||||
|
||||
2. 创建 VS Code 调试配置（``.vscode/launch.json``）：
|
||||
|
||||
.. code-block:: json
|
||||
|
||||
{
|
||||
"version": "0.2.0",
|
||||
"configurations": [
|
||||
{
|
||||
"name": "Wokwi GDB",
|
||||
"type": "cppdbg",
|
||||
"request": "launch",
|
||||
"program": "${workspaceFolder}/build/your_app.elf",
|
||||
"cwd": "${workspaceFolder}",
|
||||
"MIMode": "gdb",
|
||||
"miDebuggerPath": "xtensa-esp32-elf-gdb",
|
||||
"miDebuggerServerAddress": "localhost:3333"
|
||||
}
|
||||
]
|
||||
}
|
||||
|
||||
3. 使用 ``F1`` → ``Wokwi: Start Simulator and Wait for Debugger`` 启动仿真器。
|
||||
4. 在 VS Code 中按 ``F5`` 附加调试器。
|
||||
|
||||
更多详细信息请参阅 `Wokwi 调试指南 <https://docs.wokwi.com/guides/debugger>`__。
|
||||
|
||||
**Wi-Fi 网络**
|
||||
|
||||
Wokwi 支持 IoT 项目的 Wi-Fi 仿真。相关内容请参阅 `ESP32 Wi-Fi 网络指南 <https://docs.wokwi.com/guides/esp32-wifi>`__，包括：
|
||||
|
||||
- 连接 Wi-Fi 网络。
|
||||
- MQTT、HTTP 和 HTTPS 协议。
|
||||
- WebSocket 通信。
|
||||
- 无需物理硬件的网络测试。
|
||||
|
||||
**CI/CD 集成**
|
||||
|
||||
使用 Wokwi 在 GitHub Actions 中自动化测试：
|
||||
|
||||
.. code-block:: yaml
|
||||
|
||||
- name: Simulate & take screenshot
|
||||
run: |
|
||||
wokwi-cli \
|
||||
--screenshot-part "esp" \
|
||||
--screenshot-time 5000 \
|
||||
--screenshot-file "screenshot-${{ matrix.board }}.png" \
|
||||
"boards/${{ matrix.board }}"
|
||||
|
||||
- name: Upload screenshot
|
||||
uses: actions/upload-artifact@v4
|
||||
with:
|
||||
name: screenshot-${{ matrix.board }}
|
||||
path: screenshot-${{ matrix.board }}.png
|
||||
|
||||
以上配置可实现自动化视觉回归测试，确保项目在不同提交之间表现一致。
|
||||
|
||||
更多资源
|
||||
~~~~~~~~
|
||||
|
||||
**视频教程**
|
||||
|
||||
- `DevCon24 - Flash Less, Do More: The Magic of Virtual Hardware <https://youtu.be/8PTYnNFK1pw>`__：了解仿真在嵌入式开发中的强大功能
|
||||
|
||||
**文档**
|
||||
|
||||
- `Wokwi 文档 <https://docs.wokwi.com>`__：涵盖 Wokwi 全部功能的综合资源
|
||||
- `ESP32 仿真指南 <https://docs.wokwi.com/guides/esp32>`__：介绍支持的开发板、语言和功能
|
||||
- `ESP32 Wi-Fi 网络 <https://docs.wokwi.com/guides/esp32-wifi>`__：IoT 项目 Wi-Fi 仿真指南
|
||||
- `VS Code 集成 <https://docs.wokwi.com/vscode/getting-started>`__：设置和配置指南
|
||||
- `CLion 插件 <https://plugins.jetbrains.com/plugin/23826-wokwi-simulator>`__：CLion 集成详细信息
|
||||
- `开发者门户上的 Wokwi 文章 <https://developer.espressif.com/tags/wokwi/>`__：汇集教程和用例
|
||||
|
||||
**获取帮助**
|
||||
|
||||
- `Wokwi 社区 <https://discord.gg/wokwi>`__：加入 Wokwi Discord 服务器，获取社区支持与交流
|
||||
|
||||
Reference in New Issue
Block a user