yyiu002,

Can you advise to use the library QSerialDevice. As an alternative QextSerialPort:

http://qt-apps.org/content/show.php/...content=112039

But version 0.2.0 is already out of date. The latest version is on the SVN here: fireforge.net

But the site fireforge.net are no longer working .
I will try to create a repository QSerialDevice today at: http://gitorious.org/