python serial communication stops until ctrl c

  • 1 year ago
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If your Python serial communication code stops working and does not receive any data until you press Ctrl+C, there are a few things you can try to troubleshoot the issue:

  1. Verify that the serial port is connected and configured correctly. Make sure that the serial port is connected to the correct device and that its baud rate, data bits, stop bits, and parity settings match those of the device you're communicating with.

  2. Check that the serial port is opened correctly in your Python code. Make sure that you're using the correct port name and that the baud rate, data bits, stop bits, and parity settings are set correctly. Also, make sure that you're opening the serial port in read mode ("r").

  3. Use a timeout when reading from the serial port. If your code is waiting for data from the serial port but is not receiving any, try setting a timeout when reading from the port. This will prevent your code from blocking indefinitely if no data is received. You can set a timeout by passing a value in seconds to the timeout parameter of the readline() method.

  4. Add error handling to your code. If your code encounters an error while reading from the serial port, it may stop working without producing any output. Add error handling to your code to catch and handle any exceptions that may be raised.

  5. Try using a different serial communication library. If the issue persists, try using a different serial communication library in your Python code. There are many Python libraries available for serial communication, such as pyserial and serial.tools.list_ports.

By following these troubleshooting steps, you should be able to identify and resolve any issues that are causing your Python serial communication code to stop working and not receive any data until you press Ctrl+C.