View Full Version : RS232 relay control under OSX

Dec 19, 2006, 04:41 AM
I want to write a program that will allow me to control some external electronic relays connected to my macbook via a USB/Rs232 (serial/TTY) connection. In windows I was able to set individual pins on the RS232 to high or low from within my program (in something similar to this (http://www.codeproject.com/csharp/csppleds.asp)) I was wondering if there was anyway of doing this using objective c under osx? If anyone has seen any guides to diy hardware control under osx, that would be useful to, cheers

Dec 19, 2006, 04:47 AM
You'd be better dropping to straight C for this, not using Obj-C. There was some discussion on using serial ports on this very forum a bit back. Try searching...