Speed of Dark Blog

DexOS has made a significant leap with an application to showcase it’s full TCP/IP stack implementation and embedded capabilities:  Meet HomeServ, an application that controls some nifty home-brew hardware that turns lights on or off from anywhere in the world.  Rest assured, there is a password involved, and no, it won’t lock your doors or take out it’s frustrations on household pets… yet.

http://speedofdark.us/pmwiki/pmwiki.php?n=DexOS.HomeAutomation

Posted in Basic Circuits is a very basic RS-232 driver circuit to use  in interfacing your circuits to a PC via serial port.  Notice I used the MAX233 integrated circuit, to avoid a mass of capacitors and soldering for the novice.  The MAX232 is nearly identical, except for the use of external capacitors.  It is a bit cheaper as well, but does not yield such a compact and clean board layout. http://speedofdark.us/pmwiki/pmwiki.php?n=Projects.Interfaces