I am completely new to the world of home automation.  However, my
thermostat needs to be replaced, and I would very much like to replace
it with something that I can program from my PC.  Having said that, I
don't really know where to begin.  Has anyone got any suggestions for
me?

Here is a further elaboration of my situation.  I would like,
eventually, to put controllable dampers or flow controls or whatever
they're called into the pipes from my furnace/AC so that I can control
different zones separately.  However, I can't afford that right now.
So, I want to start by replacing my thermostat, with a view to
building the system out further if/when I can afford more.

I have done a little reading on the net but it hasn't gotten me a lot
closer to a solution just yet.  I've read a little about X10 and
RS-485, but being new to this field, I generally get confused before I
get very far.  Can someone offer me guidance as to exactly which
components I'll need to buy now in order to hook up a thermostat to my
PC and be able to control it?

Thanks a lot!
Brad.

Bradley Plett wrote:
> I am completely new to the world of home automation.

There are some pages you might find of interest at....

http://sheepdogsoftware.co.uk/sc1main.htm

Hope it helps...

Tom

Re- thermostat: If you live in a place where pipes freeze:

Put a traditional t'stat in to maintain a minimum heat. Fit "computer
controlled" "t'stat" in parallel with the safer one, and use it to
boost the t'ture as suits your needs... but whatever happens, at least
your house gets enough heat to keep pipes unfrozen...

I put one of these in myself a little over a year ago. I loked at quite
a few models but finally went with an RC-122 thermostat from HAI. I
have had no problems at all with it.

The features that made me decide on this one were:

- Serial port connection (this one can also do RS-485 I think)
- Compatible with their Omni series home automation controllers (I want
to get one when I can afford it).
- Can display outside temperature (either with external sensor or
update from the computer).

Their protocol isn't that difficult, and if you are connecting it to a
PC they have a program you can use so you don't have to write any code.


I bought it from Worthington Distribution (http://www.worthdist.com).
Their prices are good and their service is excellent.

BTW, unless you have a two stage furnace, you don't need this model--
it's about $40 more for the two stage if I remember correctly.

I hope this helps.

Bill

Bradley Plett wrote:
> I am completely new to the world of home automation.  However, my
> thermostat needs to be replaced, and I would very much like to replace
> it with something that I can program from my PC.  Having said that, I
> don't really know where to begin.  Has anyone got any suggestions for
> me?
>
> Here is a further elaboration of my situation.  I would like,
> eventually, to put controllable dampers or flow controls or whatever
> they're called into the pipes from my furnace/AC so that I can control
> different zones separately.  However, I can't afford that right now.
> So, I want to start by replacing my thermostat, with a view to
> building the system out further if/when I can afford more.
>
> I have done a little reading on the net but it hasn't gotten me a lot
> closer to a solution just yet.  I've read a little about X10 and
> RS-485, but being new to this field, I generally get confused before I
> get very far.  Can someone offer me guidance as to exactly which
> components I'll need to buy now in order to hook up a thermostat to my
> PC and be able to control it?
> 
> Thanks a lot!
> Brad.

Thank-you VERY MUCH for your post!  It really was a very helpful
start.

So I immediately did some reading on the RC-122, and once again came
up with more questions that are answered neither by the documentation
I've found nor by your response (well, you imply answers, but.... :-)

1.  How do I connect it to my PC?  All the stuff I found mentioned
only connecting it to an Omni controller.  Do I need any thing other
than the thermostat in order to connect it to my PC?  Does it plug
right into an RS-232 or a USB port?  (Actually, I think
http://www.homeauto.com/Products/Omnistat/rc122.asp answers this, and
that it simply plugs into the RS-232 port, but it's always nicer to
have confirmation.  :-)

2.  Assuming I can connect it directly to my PC, can I program it
myself?  Do they provide any software or API?  I am a developer, and
enjoy the programming aspect of this, but I'd still like to know that
there is a starting point without having to buy more.  (Again, I think
the link answers that, but....)

3.  When it comes to furnaces and air conditioners, how would I even
know if I need a one-stage or two?  If I buy the two-stage thermostat,
is it safe to assume that it will work even if my furnace or A/C are
single stage?

4.  I assume that HAI's control system and protocol is not compatible
with X10 nor RS-485, is that right?  I don't know how important this
is, but I do want to have an eye on the future when purchasing.

Thanks again!  I feel like I've made a giant leap forward due to your
post.  :-)

Brad.

On 20 Jun 2005 21:26:37 -0700, mcbill20@yahoo.com wrote:

>I put one of these in myself a little over a year ago. I loked at quite
>a few models but finally went with an RC-122 thermostat from HAI. I
>have had no problems at all with it.
>
>The features that made me decide on this one were:
>
>- Serial port connection (this one can also do RS-485 I think)
>- Compatible with their Omni series home automation controllers (I want
>to get one when I can afford it).
>- Can display outside temperature (either with external sensor or
>update from the computer).
>
>Their protocol isn't that difficult, and if you are connecting it to a
>PC they have a program you can use so you don't have to write any code.
>
>
>I bought it from Worthington Distribution (http://www.worthdist.com).
>Their prices are good and their service is excellent.
>
>BTW, unless you have a two stage furnace, you don't need this model--
>it's about $40 more for the two stage if I remember correctly.
>
>I hope this helps.
>
>Bill
>
>Bradley Plett wrote:
>> I am completely new to the world of home automation.  However, my
>> thermostat needs to be replaced, and I would very much like to replace
>> it with something that I can program from my PC.  Having said that, I
>> don't really know where to begin.  Has anyone got any suggestions for
>> me?
>>
>> Here is a further elaboration of my situation.  I would like,
>> eventually, to put controllable dampers or flow controls or whatever
>> they're called into the pipes from my furnace/AC so that I can control
>> different zones separately.  However, I can't afford that right now.
>> So, I want to start by replacing my thermostat, with a view to
>> building the system out further if/when I can afford more.
>>
>> I have done a little reading on the net but it hasn't gotten me a lot
>> closer to a solution just yet.  I've read a little about X10 and
>> RS-485, but being new to this field, I generally get confused before I
>> get very far.  Can someone offer me guidance as to exactly which
>> components I'll need to buy now in order to hook up a thermostat to my
>> PC and be able to control it?
>> 
>> Thanks a lot!
>> Brad.

Thank-you VERY MUCH for your post!  It really was a very helpful
start.

So I immediately did some reading on the RC-122, and once again came
up with more questions that are answered neither by the documentation
I've found nor by your response (well, you imply answers, but.... :-)

1.  How do I connect it to my PC?  All the stuff I found mentioned
only connecting it to an Omni controller.  Do I need any thing other
than the thermostat in order to connect it to my PC?  Does it plug
right into an RS-232 or a USB port?  (Actually, I think
http://www.homeauto.com/Products/Omnistat/rc122.asp answers this, and
that it simply plugs into the RS-232 port, but it's always nicer to
have confirmation.  :-)

2.  Assuming I can connect it directly to my PC, can I program it
myself?  Do they provide any software or API?  I am a developer, and
enjoy the programming aspect of this, but I'd still like to know that
there is a starting point without having to buy more.  (Again, I think
the link answers that, but....)

3.  When it comes to furnaces and air conditioners, how would I even
know if I need a one-stage or two?  If I buy the two-stage thermostat,
is it safe to assume that it will work even if my furnace or A/C are
single stage?

4.  I assume that HAI's control system and protocol is not compatible
with X10 nor RS-485, is that right?  I don't know how important this
is, but I do want to have an eye on the future when purchasing.

Thanks again!  I feel like I've made a giant leap forward due to your
post.  :-)

Brad.

On 20 Jun 2005 21:26:37 -0700, mcbill20@yahoo.com wrote:

>I put one of these in myself a little over a year ago. I loked at quite
>a few models but finally went with an RC-122 thermostat from HAI. I
>have had no problems at all with it.
>
>The features that made me decide on this one were:
>
>- Serial port connection (this one can also do RS-485 I think)
>- Compatible with their Omni series home automation controllers (I want
>to get one when I can afford it).
>- Can display outside temperature (either with external sensor or
>update from the computer).
>
>Their protocol isn't that difficult, and if you are connecting it to a
>PC they have a program you can use so you don't have to write any code.
>
>
>I bought it from Worthington Distribution (http://www.worthdist.com).
>Their prices are good and their service is excellent.
>
>BTW, unless you have a two stage furnace, you don't need this model--
>it's about $40 more for the two stage if I remember correctly.
>
>I hope this helps.
>
>Bill
>
>Bradley Plett wrote:
>> I am completely new to the world of home automation.  However, my
>> thermostat needs to be replaced, and I would very much like to replace
>> it with something that I can program from my PC.  Having said that, I
>> don't really know where to begin.  Has anyone got any suggestions for
>> me?
>>
>> Here is a further elaboration of my situation.  I would like,
>> eventually, to put controllable dampers or flow controls or whatever
>> they're called into the pipes from my furnace/AC so that I can control
>> different zones separately.  However, I can't afford that right now.
>> So, I want to start by replacing my thermostat, with a view to
>> building the system out further if/when I can afford more.
>>
>> I have done a little reading on the net but it hasn't gotten me a lot
>> closer to a solution just yet.  I've read a little about X10 and
>> RS-485, but being new to this field, I generally get confused before I
>> get very far.  Can someone offer me guidance as to exactly which
>> components I'll need to buy now in order to hook up a thermostat to my
>> PC and be able to control it?
>> 
>> Thanks a lot!
>> Brad.

Brad,
I will try to answer your questions:

1. You can connect it to your PC's serial port. It only uses pins 2, 3
and 7. If you are out of ports you can get a USB to serial adapter and
connect it to that. You may also be able to use RS-485 if you have a
long distance to connect. I'm not totally sure on this part so I'd
check with the manufacturer.

2. I don't know for sure whether or not they have an API but I believe
they have software that runs on a PC. I am controlling it from a VMS
system so I had to write all the software myself. The programming is
pretty straightforward.

3. If you don't know what type of furnace you have, I would either
check the thermostat type or get an HVAC person to check it for you.
You could use a two stage thermostat on a single stage furnace but it
would be a waste of money. And if you use a single stage thermostat on
a two stage furnace you miss out on the cost savings of running a two
stage furnace.

4. This thermostat is not compatible with X-10. I had originally
thought it could be used for either RS-232 or RS-485 but now I can't
find any info on the RS-485. 

I hope this helps.

Bill

Brad,
I will try to answer your questions:

1. You can connect it to your PC's serial port. It only uses pins 2, 3
and 7. If you are out of ports you can get a USB to serial adapter and
connect it to that. You may also be able to use RS-485 if you have a
long distance to connect. I'm not totally sure on this part so I'd
check with the manufacturer.

2. I don't know for sure whether or not they have an API but I believe
they have software that runs on a PC. I am controlling it from a VMS
system so I had to write all the software myself. The programming is
pretty straightforward.

3. If you don't know what type of furnace you have, I would either
check the thermostat type or get an HVAC person to check it for you.
You could use a two stage thermostat on a single stage furnace but it
would be a waste of money. And if you use a single stage thermostat on
a two stage furnace you miss out on the cost savings of running a two
stage furnace.

4. This thermostat is not compatible with X-10. I had originally
thought it could be used for either RS-232 or RS-485 but now I can't
find any info on the RS-485. 

I hope this helps.

Bill

HAI, does sell a pre-made cable for connecting the thermostat to a pc.



If i recall correctly they made a simple pc app to control the rc-series 
thermostats.  If not they have published the protocols of their Omni 
Protocol.  You could write this into a software app as needed.



-- 
Brett Griffin, Technology Consultant

Architechtronics, Inc.
get to know home technologyT
p. (610) 825.7018 f (215) 827.5484

*top 10 reasons to use Architechtronics for your next project 
http://www.architechtronics.com/top10.html

**keep up on cutting-edge technology... join "the EDGE" for free at 
http://www.architectronics.com/edge.html

-------------------------------------------


"Bradley Plett" <plettb@hotmail.com> wrote in message 
news:639fb1tjqan9hst87690b4tbp7qqgjl3re@4ax.com...
> Thank-you VERY MUCH for your post!  It really was a very helpful
> start.
>
> So I immediately did some reading on the RC-122, and once again came
> up with more questions that are answered neither by the documentation
> I've found nor by your response (well, you imply answers, but.... :-)
>
> 1.  How do I connect it to my PC?  All the stuff I found mentioned
> only connecting it to an Omni controller.  Do I need any thing other
> than the thermostat in order to connect it to my PC?  Does it plug
> right into an RS-232 or a USB port?  (Actually, I think
> http://www.homeauto.com/Products/Omnistat/rc122.asp answers this, and
> that it simply plugs into the RS-232 port, but it's always nicer to
> have confirmation.  :-)
>
> 2.  Assuming I can connect it directly to my PC, can I program it
> myself?  Do they provide any software or API?  I am a developer, and
> enjoy the programming aspect of this, but I'd still like to know that
> there is a starting point without having to buy more.  (Again, I think
> the link answers that, but....)
>
> 3.  When it comes to furnaces and air conditioners, how would I even
> know if I need a one-stage or two?  If I buy the two-stage thermostat,
> is it safe to assume that it will work even if my furnace or A/C are
> single stage?
>
> 4.  I assume that HAI's control system and protocol is not compatible
> with X10 nor RS-485, is that right?  I don't know how important this
> is, but I do want to have an eye on the future when purchasing.
>
> Thanks again!  I feel like I've made a giant leap forward due to your
> post.  :-)
>
> Brad.
>
> On 20 Jun 2005 21:26:37 -0700, mcbill20@yahoo.com wrote:
>
>>I put one of these in myself a little over a year ago. I loked at quite
>>a few models but finally went with an RC-122 thermostat from HAI. I
>>have had no problems at all with it.
>>
>>The features that made me decide on this one were:
>>
>>- Serial port connection (this one can also do RS-485 I think)
>>- Compatible with their Omni series home automation controllers (I want
>>to get one when I can afford it).
>>- Can display outside temperature (either with external sensor or
>>update from the computer).
>>
>>Their protocol isn't that difficult, and if you are connecting it to a
>>PC they have a program you can use so you don't have to write any code.
>>
>>
>>I bought it from Worthington Distribution (http://www.worthdist.com).
>>Their prices are good and their service is excellent.
>>
>>BTW, unless you have a two stage furnace, you don't need this model--
>>it's about $40 more for the two stage if I remember correctly.
>>
>>I hope this helps.
>>
>>Bill
>>
>>Bradley Plett wrote:
>>> I am completely new to the world of home automation.  However, my
>>> thermostat needs to be replaced, and I would very much like to replace
>>> it with something that I can program from my PC.  Having said that, I
>>> don't really know where to begin.  Has anyone got any suggestions for
>>> me?
>>>
>>> Here is a further elaboration of my situation.  I would like,
>>> eventually, to put controllable dampers or flow controls or whatever
>>> they're called into the pipes from my furnace/AC so that I can control
>>> different zones separately.  However, I can't afford that right now.
>>> So, I want to start by replacing my thermostat, with a view to
>>> building the system out further if/when I can afford more.
>>>
>>> I have done a little reading on the net but it hasn't gotten me a lot
>>> closer to a solution just yet.  I've read a little about X10 and
>>> RS-485, but being new to this field, I generally get confused before I
>>> get very far.  Can someone offer me guidance as to exactly which
>>> components I'll need to buy now in order to hook up a thermostat to my
>>> PC and be able to control it?
>>>
>>> Thanks a lot!
>>> Brad.
> 

Bradley Plett wrote:
> I am completely new to the world of home automation.  However, my
> thermostat needs to be replaced, and I would very much like to replace
> it with something that I can program from my PC.  Having said that, I
> don't really know where to begin.  Has anyone got any suggestions for
> me?
>
> Here is a further elaboration of my situation.  I would like,
> eventually, to put controllable dampers or flow controls or whatever
> they're called into the pipes from my furnace/AC so that I can control
> different zones separately.  However, I can't afford that right now.
> So, I want to start by replacing my thermostat, with a view to
> building the system out further if/when I can afford more.

For easy single-point PC control, you can get an IP thermostat with a
built-in web server like the Proliphix
(http://www.proliphix.com/pro_products_consumer.html). Instant PC
access, but you have to run Cat5 to your thermostat location.

You could also get a direct-RS232 or RS-485 controlled unit. One
example is the HAI RC Series
(http://www.hometech.com/modules/therm.html#HAI). Another example is
the Aprilaire 8870
(http://www.smarthomeusa.com/Shop/Climate/aprilaire/Aprilaire-Communicating/Item/8870/).
These get quite expensive if you want zone control, as you have to by
the HAI Omni or an Aprilaire system controller to do this (and I think
only certain Omnistats work with zoned systems).

But what might be a good fit for you is the RCS series
(http://www.resconsys.com/products/stats/serial.htm). It uses your
existing thermostat wire to communicate from the thermostats to an
included controller, so it's easy to retrofit. But it is easy and
cost-effective to grow it into a full zoned system with automatic
damper control. Be careful when buying from places like Smarthome--they
only sell the thermostats in a bundle with a controller. I've seen
people buy 6 sets from Smarthome, and then they have a stack of five
extra unused controllers. Find a place where you can buy the Wall
Display Units separately (i.e. Worthington, $75) and a separate zone
controller ($150-300 depending on number of zones and communication
options). Lots of home control software (including the free
MisterHouse) can interface with an RCS system.

Hope this helps.

- Mark.

OK, this post was very helpful!  Now I'm wondering if I can get some
pros and cons of the different options.  For example, what are the
pros/cons of the HAI vs. the Aprilaire vs. the RCS?

I'm not particularly interested in the one that has a web server
built-in.  Also, I would assume that even if the thermostat can't
control different zones, if I ran everything from my PC that wouldn't
be a problem, since I could program the different zones myself.  Any
more thoughts?

Thanks!
Brad.

On 21 Jun 2005 09:01:10 -0700, "Mark Thomas" <mrt@thomaszone.com>
wrote:

>
>
>Bradley Plett wrote:
>> I am completely new to the world of home automation.  However, my
>> thermostat needs to be replaced, and I would very much like to replace
>> it with something that I can program from my PC.  Having said that, I
>> don't really know where to begin.  Has anyone got any suggestions for
>> me?
>>
>> Here is a further elaboration of my situation.  I would like,
>> eventually, to put controllable dampers or flow controls or whatever
>> they're called into the pipes from my furnace/AC so that I can control
>> different zones separately.  However, I can't afford that right now.
>> So, I want to start by replacing my thermostat, with a view to
>> building the system out further if/when I can afford more.
>
>For easy single-point PC control, you can get an IP thermostat with a
>built-in web server like the Proliphix
>(http://www.proliphix.com/pro_products_consumer.html). Instant PC
>access, but you have to run Cat5 to your thermostat location.
>
>You could also get a direct-RS232 or RS-485 controlled unit. One
>example is the HAI RC Series
>(http://www.hometech.com/modules/therm.html#HAI). Another example is
>the Aprilaire 8870
>(http://www.smarthomeusa.com/Shop/Climate/aprilaire/Aprilaire-Communicating/Item/8870/).
>These get quite expensive if you want zone control, as you have to by
>the HAI Omni or an Aprilaire system controller to do this (and I think
>only certain Omnistats work with zoned systems).
>
>But what might be a good fit for you is the RCS series
>(http://www.resconsys.com/products/stats/serial.htm). It uses your
>existing thermostat wire to communicate from the thermostats to an
>included controller, so it's easy to retrofit. But it is easy and
>cost-effective to grow it into a full zoned system with automatic
>damper control. Be careful when buying from places like Smarthome--they
>only sell the thermostats in a bundle with a controller. I've seen
>people buy 6 sets from Smarthome, and then they have a stack of five
>extra unused controllers. Find a place where you can buy the Wall
>Display Units separately (i.e. Worthington, $75) and a separate zone
>controller ($150-300 depending on number of zones and communication
>options). Lots of home control software (including the free
>MisterHouse) can interface with an RCS system.
>
>Hope this helps.
>
>- Mark.

Well it really depends on what you are hooking up to the thermostat.  If you 
are using an HAI Omni system the HAI tstat makes sense.  April Air get the 
votes for looking the best, and I dont know much about RCS.

They all can connect to a PC.

The only other concern would be cost.  I think the HAI RC-80 Single stage 
thermostat will be the cheapest of the bunch.

-- 
Brett Griffin, Technology Consultant

Architechtronics, Inc.
get to know home technologyT
p. (610) 825.7018 f (215) 827.5484

*top 10 reasons to use Architechtronics for your next project 
http://www.architechtronics.com/top10.html

**keep up on cutting-edge technology... join "the EDGE" for free at 
http://www.architectronics.com/edge.html

-------------------------------------------


"Bradley Plett" <plettb@hotmail.com> wrote in message 
news:5eakb119k90q9fmp22fjbrs5hol2croo0m@4ax.com...
> OK, this post was very helpful!  Now I'm wondering if I can get some
> pros and cons of the different options.  For example, what are the
> pros/cons of the HAI vs. the Aprilaire vs. the RCS?
>
> I'm not particularly interested in the one that has a web server
> built-in.  Also, I would assume that even if the thermostat can't
> control different zones, if I ran everything from my PC that wouldn't
> be a problem, since I could program the different zones myself.  Any
> more thoughts?
>
> Thanks!
> Brad.
>
> On 21 Jun 2005 09:01:10 -0700, "Mark Thomas" <mrt@thomaszone.com>
> wrote:
>
>>
>>
>>Bradley Plett wrote:
>>> I am completely new to the world of home automation.  However, my
>>> thermostat needs to be replaced, and I would very much like to replace
>>> it with something that I can program from my PC.  Having said that, I
>>> don't really know where to begin.  Has anyone got any suggestions for
>>> me?
>>>
>>> Here is a further elaboration of my situation.  I would like,
>>> eventually, to put controllable dampers or flow controls or whatever
>>> they're called into the pipes from my furnace/AC so that I can control
>>> different zones separately.  However, I can't afford that right now.
>>> So, I want to start by replacing my thermostat, with a view to
>>> building the system out further if/when I can afford more.
>>
>>For easy single-point PC control, you can get an IP thermostat with a
>>built-in web server like the Proliphix
>>(http://www.proliphix.com/pro_products_consumer.html). Instant PC
>>access, but you have to run Cat5 to your thermostat location.
>>
>>You could also get a direct-RS232 or RS-485 controlled unit. One
>>example is the HAI RC Series
>>(http://www.hometech.com/modules/therm.html#HAI). Another example is
>>the Aprilaire 8870
>>(http://www.smarthomeusa.com/Shop/Climate/aprilaire/Aprilaire-Communicating/Item/8870/).
>>These get quite expensive if you want zone control, as you have to by
>>the HAI Omni or an Aprilaire system controller to do this (and I think
>>only certain Omnistats work with zoned systems).
>>
>>But what might be a good fit for you is the RCS series
>>(http://www.resconsys.com/products/stats/serial.htm). It uses your
>>existing thermostat wire to communicate from the thermostats to an
>>included controller, so it's easy to retrofit. But it is easy and
>>cost-effective to grow it into a full zoned system with automatic
>>damper control. Be careful when buying from places like Smarthome--they
>>only sell the thermostats in a bundle with a controller. I've seen
>>people buy 6 sets from Smarthome, and then they have a stack of five
>>extra unused controllers. Find a place where you can buy the Wall
>>Display Units separately (i.e. Worthington, $75) and a separate zone
>>controller ($150-300 depending on number of zones and communication
>>options). Lots of home control software (including the free
>>MisterHouse) can interface with an RCS system.
>>
>>Hope this helps.
>>
>>- Mark.
> 

In article <639fb1tjqan9hst87690b4tbp7qqgjl3re@4ax.com>, plettb@hotmail.com 
says...
> Thank-you VERY MUCH for your post!  It really was a very helpful
> start.

In addition to the other issues, you also need to get power from the furnace to 
run the HAI thermostat. The power drain is very low and most furnaces can do it 
easily, but I believe that you need at least a three conductor cable from the 
furnace to the Tstat. If you have an old system with 2 wire cable it will not be 
adequate. You might be able to pull a new wire from the new Tstat to the furnace. 
Check the HAI site for installation info on these models for further info.

>2. I don't know for sure whether or not they have an API but I believe
>they have software that runs on a PC. I am controlling it from a VMS
>system so I had to write all the software myself. The programming is
>pretty straightforward.

WOW!  Do you really mean DEC VMS?!  I haven't worked with one of those
for so long I was starting to think they were extinct!

I'd like to try programming my thermostat myself, but I can't seem to
find any information on it.  I see many places where it says "Protocol
is available from HAI web site", but I can't seem to find it.  :-(

Any code samples or protocol information you have would be much
appreciated.

Thanks!
Brad.

P.S.  Exact wiring information on how to hook it up to an RS-232 port
would also be helpful.

On Fri, 01 Jul 2005 05:11:43 GMT, Bradley Plett <plettb@hotmail.com>
wrote:

>>2. I don't know for sure whether or not they have an API but I believe
>>they have software that runs on a PC. I am controlling it from a VMS
>>system so I had to write all the software myself. The programming is
>>pretty straightforward.
>
>WOW!  Do you really mean DEC VMS?!  I haven't worked with one of those
>for so long I was starting to think they were extinct!
>
>I'd like to try programming my thermostat myself, but I can't seem to
>find any information on it.  I see many places where it says "Protocol
>is available from HAI web site", but I can't seem to find it.  :-(
>
>Any code samples or protocol information you have would be much
>appreciated.
>
>Thanks!
>Brad.

You must have access to the dealer site to get access to the protocol 
information.  Contact your local HAI sales rep to get a username and 
password.

BTW, I will email you the protocol document.

-- 
Brett Griffin, Home Technology Consultant

Architechtronics, Inc.
get to know home technologyT
p. (610) 825.7018 f (215) 827.5484

*top 10 reasons to use Architechtronics for your next project 
http://www.architechtronics.com/top10.html

**keep up on cutting-edge technology... join "the EDGE" for free at 
http://www.architechtronics.com/edge.html

-------------------------------------------


"Bradley Plett" <plettb@hotmail.com> wrote in message 
news:sfk9c1d1us79d9pfkkd7r70lqf7a31uajm@4ax.com...
> P.S.  Exact wiring information on how to hook it up to an RS-232 port
> would also be helpful.
>
> On Fri, 01 Jul 2005 05:11:43 GMT, Bradley Plett <plettb@hotmail.com>
> wrote:
>
>>>2. I don't know for sure whether or not they have an API but I believe
>>>they have software that runs on a PC. I am controlling it from a VMS
>>>system so I had to write all the software myself. The programming is
>>>pretty straightforward.
>>
>>WOW!  Do you really mean DEC VMS?!  I haven't worked with one of those
>>for so long I was starting to think they were extinct!
>>
>>I'd like to try programming my thermostat myself, but I can't seem to
>>find any information on it.  I see many places where it says "Protocol
>>is available from HAI web site", but I can't seem to find it.  :-(
>>
>>Any code samples or protocol information you have would be much
>>appreciated.
>>
>>Thanks!
>>Brad.
> 

In the back of the RC-122 install manual will show you how to build a serial 
cable to connect to your pc.

-- 
Brett Griffin, Home Technology Consultant

Architechtronics, Inc.
get to know home technologyT
p. (610) 825.7018 f (215) 827.5484

*top 10 reasons to use Architechtronics for your next project 
http://www.architechtronics.com/top10.html

**keep up on cutting-edge technology... join "the EDGE" for free at 
http://www.architechtronics.com/edge.html

-------------------------------------------


"Bradley Plett" <plettb@hotmail.com> wrote in message 
news:sfk9c1d1us79d9pfkkd7r70lqf7a31uajm@4ax.com...
> P.S.  Exact wiring information on how to hook it up to an RS-232 port
> would also be helpful.
>
> On Fri, 01 Jul 2005 05:11:43 GMT, Bradley Plett <plettb@hotmail.com>
> wrote:
>
>>>2. I don't know for sure whether or not they have an API but I believe
>>>they have software that runs on a PC. I am controlling it from a VMS
>>>system so I had to write all the software myself. The programming is
>>>pretty straightforward.
>>
>>WOW!  Do you really mean DEC VMS?!  I haven't worked with one of those
>>for so long I was starting to think they were extinct!
>>
>>I'd like to try programming my thermostat myself, but I can't seem to
>>find any information on it.  I see many places where it says "Protocol
>>is available from HAI web site", but I can't seem to find it.  :-(
>>
>>Any code samples or protocol information you have would be much
>>appreciated.
>>
>>Thanks!
>>Brad.
>