Hi all, I build this focuser github.com/fehlfarbe/arduino-motorfocus
It worked ok on linux machine, but when I try to use it on a MacBook, kstars can't connect to it and print this message:

I read the log file, it seems that kstars can't open the serial port. After I replug the focuser, log shows that connection is ok, but handshake failed.
At the same time, I use another computer connect to the focuser's debug serial, it shows that the focuser dose not receive any thing from kstars.
But I can use Arduino ide's terminal connect to the focuser on MacBook , and it deal the commands correct.
So what can I do to identify where is the problem? thx

Read More...