Hi Guys,
Great
minds think alike. This is just what I am developing. I am going to use the
rabbit module, but it will also deal with X10. I plan to have control of 5
dimmers, or relays, and will allow local control, status response, Issue
x10
commands based on actions. Allow for separate up/down dimming switched.
Soft
Start, Dimmer memory etc. The list is endless.
I’ll keep you posted on how far
we
get.
All at design stage at the mo but hope
to
have something to show in May.
Regards,
Paul
-----Original Message-----
From: Kevin Wood
[mailto:kevin_wood@xxxxxxx]
Sent: 21 February 2002
10:13
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d]
Interesting
Concept... or complete idiocy?
>Have you
looked into building one of these?? Any ideas of approx
cost?
I'd
like
to build something along these lines. The economy would come in when you
start
to consider the possibility of switching more than 1 channel using a single
PIC
and receiver circuit. If you program the device and / or house codes
into
the PIC when you blow it (not too much of a restriction) you can use all
the
remaining IO pins to drive more channels. If you build a 4 channel or even
8
channel module then it becomes much cheaper than a consumer unit full of
LD11's, where you duplicate the circuit for each channel.
Furthermore,
a PIC such as the 16F84 (a couple of quid) has flash memory which could be
used
to memorise preset dim levels, the last state of the device at power
down and so on.
I
just
need to find the time to have a play now...
I
don't
think processing the analogue signal to recover the 120KHz carrier inside a
PIC
is a goer, though. You'd need a lot of processing power to implement a
digital
filter which would be as effective as a tuned LC circuit. However,
there
are certainly improvements which could be made over most commercial X10
receivers.
For
more information: http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx
Subscribe: ukha_d-subscribe@xxxxxxx
Unsubscribe:
ukha_d-unsubscribe@xxxxxxx
List owner:
ukha_d-owner@xxxxxxx
Your use
of
Yahoo! Groups is subject to the Yahoo!
Terms of Service.