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Changes
→Connection instruction of debugging serial port
<li><p>The GND, TXD and RXD pins of the USB to TTL module need to be connected to the debugging serial port of the development board through a DuPont line</p>
<ol style="list-style-type: lower-alpha;">
<li><p>The GND of the USB to TTL module is connected to the GND of the > development board</p></li><li><p>The '''<span style="color:#FF0000">RX</span>''' of the USB to TTL module is '''<span style="color:#FF0000">connected to the TX of > the development board</span>'''</p></li><li><p>The '''<span style="color:#FF0000">TX</span>''' of the USB to TTL module is '''<span style="color:#FF0000">connected to the RX of > the development board</span>'''</p></li></ol>
</li>
<li><p>The schematic diagram of connecting the USB to TTL module to the computer and the Orange Pi development board is as follows</p>