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→How to use USB camera
# If the USB camera is recognized normally, the corresponding video device node will be generated under /dev
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console:/ # '''ls /dev/video0'''
/dev/video0
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<li><p>Then make sure that the adb connection between the Ubuntu PC and the development board is normal. For how to use adb, please refer to the instructions in the section "[[Orange Pi Zero 2W#How to use ADB|'''How to use ADB''']]".</p></li><li><p>Download the USB camera test APP from the '''official tool''' on the development board information download page</p></li></ol>
<div class="figure">
[[File:zero2w-img337.png]]
</div></ol>
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<li>Then use the adb command to install the USB camera test APP into the Android system. Of course, you can also use a USB disk copy to install it.</li></ol>{| class="wikitable" style="width:800px;" |-|
test@test:~$ '''adb install usbcamera.apk'''
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<li>After installation, you can see the startup icon of the USB camera on the Android desktop.</li></ol>
[[File:zero2w-img338.png]]
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<li>Then double-click to open the USB camera APP and you can see the output video of the USB camera.</li></ol>
<span id="android-system-root-description"></span>
== Android system ROOT description ==