Arduino - UFactory uArm Swift Pro Developer's Manual

So wiring the UART with the jump wire and also the GND. Then the hardware set up is
finished. Then we have to change the main communication port from USB to the 2
since the code only supports one port to deal with the command.
Sending "#0 M2500" command over USB cable to switch the port, and there are several
point you should know:
1. The port will be switched immediately (both ports receive the reply "ok"), and the USB port
can not be used as the communication port any more, only 2
sending Gcode.
2. There is no way to switch port any more, the only way to use USB port is reset the system
by power button.
If it's not convenient for your project, please try to modify the source code following the
steps below:
1. Download the Arduino source file in Github.
2. Find the file named uArmSerial.cpp and modify the code in line 16 from _serial=&serial; to
_serial=&serial2; .
3. Find the file named uArmService.cpp and modify the code in line 693 from
commSerial.setSerialPort(&Serial); to commSerial.setSerialPort(&Serial2); .
4. Rebuild the files and download the code to uArm.

4.Arduino

The main code is written by Arduino IDE. Please check the link below:
https://github.com/uArm-Developer/SwiftProForArduino
How to compile and upload the file？
1. Download the code and extract it to your Arduino libraries folder
C:/Users/ufactory/documents/Arduino/libraries/)
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nd
UART port,
nd
UART port would work for
(normally it's in