It is possible though I can't remember off-hand how to on a Pi. The trick is to have a pair of virtual serial ports. One you app accesses, say '/dev/serial_localhost', then another program can connect to the other, can read data sent by that app, send data back to your app.What I want, primarily, is the serial equivalent of "localhost" ... (/dev/serial_localhostfor example) that I could open in a python script and send data to it and then have the software under test open a serial connection to /dev/serial_localhost, 9600 8N1, and read the data as if it were a "real" serial port.
for example) that I could open in a python script and send data to it and then have the software under test open a serial connection to /dev/serial_localhost, 9600 8N1, and read the data as if it were a "real" serial port.The magic ingredient is whatever connects the two together. Maybe it's "netcat" on a Pi but I can't really remember. "com0com" does this on Windows so a search on that with "linux" added may help, as may "linux virtual serial ports".
Statistics: Posted by hippy — Mon Mar 17, 2025 5:49 pm