KLL wrote:i see in a other example that a
ser.write(input + '\r\n') included a add sending CRLF, because on the other side you wait for
a complete line by ser.readline()
your keyboard ENTER could be eaten by the input! and not be part of the string

I see, yes it makes sense. Thank you.

If the LED on the module is flashing when you press keys on the Pi I'd say the Pi is wired correctly and working and you need to look at the laptop end of things. Is the cable to the laptop the correct one? You probably need cross-over instead of straight-through. The simplest wiring of a cross-ove...

I want to connect old Dell Latitude D630 laptop with my Raspberry pi 2 via serial port. I have been following tutorial on this page http://elinux.org/RPi_Serial_Connection and another here http://www.instructables.com/id/Read-and-write-from-serial-port-with-Raspberry-Pi/ . Unfortunately I can't tran...