Linux detects serial port packets

In Linux, you can use some commands and tools to detect serial port packets. Here are a few common methods:

1. Use the minicom command:

   • Install minicom:sudo apt-get install minicom
   • Run minicom: sudo minicom -D /dev/ttyUSB0 -b 9600
     (Note: It will be /dev/ttyUSB0replaced with the path of the serial device you actually use, 9600which is the baud rate, and adjusted as needed)
   • In the minicom window, you will be able to view and capture the messages sent and received by the serial port.

2. Use the screen command:

   • Install screens:sudo apt-get install screen
   • Open the serial port: sudo screen /dev/ttyUSB0 9600
     (will be /dev/ttyUSB0replaced by the actual serial device path, 9600which is the baud rate)
   • In the screen session, you can receive and view serial communication messages.

3. Use the cat command:

   • Open the terminal and execute the command: sudo cat /dev/ttyUSB0
     (will /dev/ttyUSB0be replaced with the actual serial device path)
   • The cat command will display the serial port packets in real time on the terminal.

These methods can help you detect serial packets. Choose the method that suits your needs, and adjust the serial device path and baud rate according to the actual situation.