Subject: From: Date:

Re: [ECS] Temperature Monitoring Don Sun, 22 Aug 1999 11:32:38 -0700

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Hi Glenn:
 Care to share some of your events?
Don
----- Original Message ----- 
From: Glenn Zupsic <glennz@bellatlantic.net>
To: <ecs-list@netbloc.com>
Sent: Saturday, August 21, 1999 9:01 AM
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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