Whole House IR.

[Grimshaw Stuart <stuart.grimshaw@xxxxxxx>]

This seems to be a recurring topic on the list, but this question should
be my last on the subject :)

There are two ways I can think of for acheiving this, I'd appreciate
anyone elses thoughts & experiences of either...

The two systems have an IR transeiver in every room, it's the gubbins
behind it that differs.

1) Have a repeater in a "central" location that just repeats any
infra
red signal it finds back out over the rest of the transceivers in the
house. With a device such as a Red Rat, or Actisys IR210L atatched to
the PC to receive any signals, and transmit any responses back into the
system.

2) Have the PC act as a "hub" for the IR, and have it decide
which needs
to be transmitted back into the system, and which it needs to respond
to...

The first seems the more simple of the two ideas, but also the more
limited. Also, transmitting the signal around the house in wires would
seem to be a problem what with signal loss and interferance. I've seen
the panels Mark and Keith designed, and I presume they work OK, so it
isn't an insurmountable problem, Mark's house will have far longer cable
runs than mine :)

The second option would give me far greater control over the system, but
would still require the transeivers in every room. Might there also be a
problem with the PC receiving the signals it has just sent?

I'd appreciate your thoughts and experiences with this kind of thing.

Also, I'll be compiling any answers and adding them to my beginners FAQ,
http://www.stubbynet.org.uk/homeautomation/myquestions.htm

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