Subject: From: Date:

RE: [ECS] Temperature Monitoring gbailey Mon, 30 Aug 1999 22:21:11 -0600

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Sounds like some great work! Don't feel isolated, I've got all kinds of
custom home-brew stuff going and ECS drives all of it :-)

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Garnet Bailey              gbailey@attcanada.net
                          www.attcanada.net/~gbailey
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-----Original Message-----
From: Glenn Zupsic [mailto:glennz@bellatlantic.net]
Sent: Saturday, August 21, 1999 10:01 AM
To: ecs-list@netbloc.com
Subject: [ECS] Temperature Monitoring


Greetings:

For those of you interested in temperature monitoring using the DALLAS
DS 1820 chip.  I use ECS to interface to a "Point Six" HA5 adapter
(www.pointsix.com).  I can monitor temperatures all around the house
using a single Cat 5 cable or the spare telephone line run to each
room.  The HA5 adapter connects to a serial port and responses to coded
text strings sent by ECS.  The adapter also communicates with the DALLAS
DS2407 latch IC. I have modified a number of PIR sensors so I can both
sense motion and  activate switches using this adapter.  ECS does not
provide direct support for the HA5 so I use the Serial-Byte TYPE with a
couple of custom made TYPEs to communicate with the HA5.  I use the HA5
to monitor temperature and to scan PIR sensors.  Scanning the PIRs
avoids conflicts from multiple activations.  I then use the CM11A to
send x-10 commands in response to HA5 activity.  I'm quite happy with
the results and my work sure demonstrates the flexibility of ECS. The
HA5 costs about $100 and everyone knows the cost of the CM11A.  Using
ECS an HA5 adapter and a CM11A I have a moderately price system with a
lot of flexibility.  My wife thinks I'm crazy for wanting to know the
temperature of every room in the house but the next time our stove
over-heats she might change her mind.

I hope someone finds this interesting, I feel a little isolated out here
using a custom interface.

Regards:

Glenn Zupsic

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