Unfortunately I can't reproduce the issue you describe on my end (at least with a fake serial port). When I've worked with Device::SerialPort, I've had the most success reading a single byte from the port at a time. However, I've had even better experiences on *NIX (including RPi) with IO::Termios, which I wrote about here: Lower-Level Serial Port Access on *NIX

In reply to Re: Serial data delay by haukex
in thread Serial data delay by StepSteve

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