Two way serial communication with raspberry Pi (radio project)

Projects Interfacing w/ Software on the Computer
20

Just come over to Europe ... the beer is on me :slight_smile:

I found a c Program "ardunio-serial.c"

pi@raspberrypi ~/scripts $ ./arduino-serial -b 9600 -p /dev/ttyACM0 -d 1600 -s 30 -r
read: 30

With that I can transfer a value like "30" in this example from the raspberry to arduino.
Unfortunately my script does not catch that value.

Any idea, why?