Chapter 3. application solution
3.6.20 What triggers “cam_hal: EV-VSYNC-OVF”in esp32-camera?
This issue occurs when the frame synchronization signal triggered by the sensor is too fast. You can
troubleshoot it following the steps below:
• Run the esp-iot-solution/examples/camera/pic_server example. If the example runs correctly, it
indicates that the issue is not hardware-related.
• Check the XCLK and resolution specied during sensor initialization. A smaller resolution or a
larger XCLK can cause the frame synchronization signal triggered by the sensor to be too fast.
Note that the XCLK used by the sensor should match the specied resolution.
3.7 Community sw and platforms
3.8 ESP Matter
3.8.1 Which ESP modules can be connected to Matter?
• Please refer to Espressif Matter Platforms.
3.8.2 What learning materials are available to get started with ESP Matter?
You can refer to:
• ESP Matter Github
• Espressif Matter series blog
• Espressif Matter solution video
• Espressif Matter Demo video
3.8.3 Can I compile and develop ESP Matter on Windows?
• It is currently not possible to compile on Windows. Also, it is not recommended to use a virtual machine for
ESP Matter development, as the Matter Controller will use Bluetooth hardware where unknown errors may
occur with the virtual machine. Using Linux or macOS systems directly are recommended.
3.8.4 Where can I nd the Matter protocol documentation?
Currently, Matter’s standard protocol has been made public, you can submit a request and download
the documentation on the CSA Alliance ocial website.
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