I have tried gtkterm and a couple of other tools. None of them seem to support a serial port baud rate which is higher than 115200. Could someone suggest some tools which will allow higher baud rates?


2 Answers 2


I have found screen and cu capable of these functions. Assuming that you are doing something like a USB-Serial adapter, the syntax would be:

cu -s 115200 /dev/ttyUSB0
screen /dev/ttyUSB0 115200

Try https://tio.github.io which support arbitrary bit rates on Linux. For example:

tio --baudrate 2000000 /dev/ttyUSB0

If you need the commonly used 115200 8n1 you can simply do:

tio /dev/ttyUSB0

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