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=== 查询 连接 USB 鼠标或键盘测试 interface test ==={| class="wikitable" style="background-color:#ffffdc;width:800px;" |-| <br><big>'''The USB interface can be connected to a USB hub to expand the number of USB interfaces.'''</big><br><br>|}=== Connect USB mouse or keyboard to test ===1) 将 Insert the USB interface keyboard into the USB 接口的键盘插入 interface of the Orange Pi 开发板的 USB 接口中development board<br><br>2) 连接 Connect the Orange Pi 开发板到 development board to the HDMI 显示器display<br><br>3) 如果鼠标或键盘能正常操作系统说明 If the mouse or keyboard can operate normally, it means that the USB 接口使用正常（鼠标只有在桌面版的系统中才能使用）interface is working normally (the mouse can only be used in the desktop version of the system)<br><br>