Date: Mon, 23 Aug 1999 15:34:44 +0100 From: Michael Searle <searle@longacre.demon.co.uk> To: freebsd-hardware@freebsd.org Subject: performance of home automation hardware Message-ID: <19990823153444.29882@longacre.demon.co.uk>
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What home automation hardware should I use/avoid
if I want it to be fast and reliable?
Is anything connected directly to a PC's serial
port (etc) OK? I would assume that this would
work, with the tiny bandwidth needed for this.
According to the web page though, HCS 2 modules
are slooow ('several seconds on large networks')
and unreliable, reading between the lines this is
because they continuously poll all devices on a
9600bps net using a Z80. (Anything connected
directly to the controller is OK, but most modules
don't.)
As the X-10 stuff is also slow and unreliable for
doing more than switching devices on and off, this
leaves me with CEBus (if I can find anything using
it.) This is more reliable, but how fast is it?
Also, has anyone got URLs where I can find more info
about CEBus and available CEBus hardware? I
couldn't find anything relevant on web searches,
just PC interfaces.
--
searle@longacre.demon.co.uk
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