range Pi User Manual Copyright reserved by Shenzhen Xunlong Software Co., Ltd
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4) The development board has an Ethernet port, which can be plugged into a network
cable for Internet access.
5) Connect a high-quality power adapter with a 5V/3A USB Type-C interface.
Remember not to plug in a power adapter with a voltage output greater than 5V,
as this will burn out the development board.
Many unstable phenomena during the power-on and start-up process of the
system are basically caused by power supply problems, so a reliable power adapter
is very important. If you find that there is a phenomenon of continuous restart
during the startup process, please replace the power supply or the Type-C data cable
and try again.
The Type-C power port does not support PD negotiation.
In addition, please do not connect the USB interface of the computer to power
the development board.
6) Then turn on the switch of the power adapter. If everything is normal, you can see the
startup screen of the system on the HDMI monitor or LCD screen.
7) If you want to view the output information of the system through the debugging serial
port, please use the serial cable to connect the development board to the computer. For
the connection method of the serial port, please refer to the section on how to use the
debugging serial port.
2.12. How to use the debugging serial port
2.12.1. Connection instruction of debugging serial port
1) 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.
For better compatibility, it is recommended to use CH340 USB to TTL module,
please do not use CP2102, PL2303 USB to TTL module.
Before purchasing a USB to TTL module, please confirm that the module
supports a baud rate of 1500000.
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