![Parallel Parallel](http://res.cloudinary.com/robpickering/image/upload/v1480171092/SerialPort_tt0avk.png)
I am trying to write an applescript on OSX 7 that simply opens the 'Edit Serial Ports' option in the Bluetooth Preferences Menu (I only have one paired device).
Implementing a serial communication protocol over RS232 or 485 is a really, really hard task. It requires a LOT of experience. I've been implementing this since good old DOS days and still get stuck in some common pitfalls. Why don't you try to find a reliable third-party offering for dealing with serial communications? They will have probably ironed out all the many, many, many bugs you'll fall into yourself:-) If this is an exercise, then go ahead, it giver great satisfaction to finally master serial communications!:-) – Dec 7 '12 at 0:39.