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→How to use the debugging serial port
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<li><p>First, you need to prepare a 3.3V USB-to-TTL module, and then insert the USB interface end of the USB-to-TTL module into the USB interface of the computer.</p>
{| class="wikitable" style="background-color:#ffffdc;width:800px;" |-| <big><p>'''For better compatibility, it is recommended to use CH340 USB to TTL module, please do not use CP2102, PL2303 USB to TTL module.'''</p><p>'''Before purchasing a USB to TTL module, please confirm that the module supports a baud rate of 1500000.'''</p></big>|}</li></ol>
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<span id="instructions-for-using-the-5v-pin-in-the-40pin-interface-of-the-development-board-to-supply-power"></span>
== Instructions for using the 5v pin in the 40pin interface of the development board to supply power ==
