Thanks for the hint. I checked the serial baudrate and it was at rate 9600 (by mistake) - so i adapted it to 115200, but then everything freezed. I can not copy any values, neither can i change any settings in the monitor. When i move the sensor there are no value updates either. Sometimes new values appear, but it seems like they have been recorded at a random and irreproducible time.
Any ideas? Thanks in advance,
milla