zoomkat:
Yes, I have been trying to find as much info on it as possible. I think I'm heading in the right direction and what I now understand or at least think I understand is that there is a conversion problem. It is between the 'serial buffer' and the 'readString' variable which is then indexed to 'n' in 'servo.write()'. Maybe, if possible, I should not do a conversion and try to work with only the buffer up to '.indexOf()'. I'm still looking for applicable information on this subject.