Friedrich, I am having some success, but named ports are broken. The attached is a fileout of my current SerialPort class. Give it a try and let me know how it goes. On Windows, you should find that COM1, COM2, etc. will work. Expect problems with COM10 and up; you will likely need to use something like \\.COMnn. On Linux, /dev/ttySnn works IF you fix the named ports. Bill ________________________________________ From: pharo-project-bounces@lists.gforge.inria.fr [pharo-project-bounces@lists.gforge.inria.fr] On Behalf Of Friedrich Dominicus [frido@q-software-solutions.de] Sent: Wednesday, December 15, 2010 12:59 AM To: Pharo-project@lists.gforge.inria.fr Subject: [Pharo-project] access to the serial interface? I'm wondering how to I access the serial interface on the diverse Platforms with Pharo. On Unix I assume I just can open the "/dev/ttyX" as Stream? What about access to COM: stuff in Windows. Just open it and see what will happen? Regards Friedrich