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'[EE]: X10 still'
2001\08\15@080222 by Micro Eng

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I had one reply and then silence (he said he had this, and I'm not sure if
he wanted to share).  I'm building a new home, and thought about trying to
play with X10 type stuff, and so, hating to pay the price, I wanted to build
my own devices.  I have no clue on the decoding of X10 protocol, so figured
that someone had to have already tackled this and has some code laying
around.  OK..no flames on just do it yourself. I work two jobs and trying to
build a house...so like I have time to respin the wheel? :-)

Thanks in advance
-Ray

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2001\08\15@083314 by Kev

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www.geocities.com/ido_bartana/

newsgroup comp.home.automation



> I had one reply and then silence (he said he had this, and I'm not sure if
> he wanted to share).  I'm building a new home, and thought about trying to
> play with X10 type stuff, and so, hating to pay the price, I wanted to
build
> my own devices.  I have no clue on the decoding of X10 protocol, so
figured
> that someone had to have already tackled this and has some code laying
> around.  OK..no flames on just do it yourself. I work two jobs and trying
to
> build a house...so like I have time to respin the wheel? :-)

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2001\08\15@085840 by Bob Ammerman

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Ray,

You won't be able to build X10 units anywhere near as cheap as you can buy
them on sale.

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)

{Original Message removed}

2001\08\15@090507 by PeterTiang

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face
Unless you are in Europe and uses 220~240V AC.

----- Original Message -----
From: "Bob Ammerman" <spam_OUTRAMMERMANTakeThisOuTspamPRODIGY.NET>
To: <.....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU>
Sent: Wednesday, August 15, 2001 8:53 PM
Subject: Re: [EE]: X10 still


{Quote hidden}

if
> > he wanted to share).  I'm building a new home, and thought about trying
to
> > play with X10 type stuff, and so, hating to pay the price, I wanted to
> build
> > my own devices.  I have no clue on the decoding of X10 protocol, so
> figured
> > that someone had to have already tackled this and has some code laying
> > around.  OK..no flames on just do it yourself. I work two jobs and
trying
> to
> > build a house...so like I have time to respin the wheel? :-)
> >
> > Thanks in advance
> > -Ray
> >
> > _________________________________________________________________
> > Get your FREE download of MSN Explorer at
http://explorer.msn.com/intl.asp
{Quote hidden}

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2001\08\15@104843 by Brandon Fosdick

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Micro Eng wrote:
>
> I had one reply and then silence (he said he had this, and I'm not sure if
> he wanted to share).  I'm building a new home, and thought about trying to
> play with X10 type stuff, and so, hating to pay the price, I wanted to build
> my own devices.  I have no clue on the decoding of X10 protocol, so figured
> that someone had to have already tackled this and has some code laying
> around.  OK..no flames on just do it yourself. I work two jobs and trying to
> build a house...so like I have time to respin the wheel? :-)

If you're building a new home, why are you using X10? It's my
understanding that X10 was designed as a retrofit option for existing
homes.

There are many commercial systems out there that are designed to be
installed during construction and are often times more capable than X10.
Some of them even work with X10 in case you design yourself into a
corner and have to use it later on.

I eventually decided to design my own system from scratch since when I
started there wasn't anything that worked on a non-propriertary
standard. Things may have changed since then.

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2001\08\15@173536 by Micro Eng

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That may be true...however, part of me just wants to build some stuff.

I can get nearly everything I need sampled or cheap thru our distributors,
so I still might be able to build cheaper than buying.


{Quote hidden}

>{Original Message removed}

2001\08\16@030751 by Vasile Surducan

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On Wed, 15 Aug 2001, Micro Eng wrote:

> I had one reply and then silence (he said he had this, and I'm not sure if
> he wanted to share).  I'm building a new home

If you built one from underground to roof, like I did
(http://www.geocities.com/vsurducan/house.htm), then you'll don't
need any data_interface with mains. You could use as many wires as you
need, undergrouded in pipes in your walls. RS485 is the best.
Cheers and succes !
Vasile

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2001\08\16@033601 by Bala Chandar

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Bob Ammerman wrote:

> You won't be able to build X10 units anywhere near as cheap
> as you can buy
> them on sale.

You are absolutely right Bob. Mass production, low-cost parts, Far East
labor and aggressive marketing of X10 make it nearly impossible for you
to save money by making your own X10 gadgets.

But, there can be a few reasons to persuade you to make your own X10
modules.

1. What is readily available in US is not suitable unless you are
residing in US or Canada.

2. In Europe, X10 gadgets are not exactly cheap.

3. You might like to add your own features to suit your requirements
better. (E.g. One compact module to control up to 8 different devices
through 8 relays.)

4. To experience the thrill of making and using your own gadget by using
your knowledge and skill relating to electronics in general and PICs in
particular.

Regards,
Bala

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2001\08\16@083607 by Micro Eng

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You forgot #5...look honey...I can do this and it won't add any extra cost
to the house!!.

What I am seriously thinking of doing is adding a pair of wires to each box,
light, etc, home running them to some convient location where I have access
to (although hidden from the normal daily life), thus giving me a few
choices on controls.

Thanks for all the help!

{Quote hidden}

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2001\08\16@084557 by Quentin

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Micro Eng wrote:
>
> You forgot #5...look honey...I can do this and it won't add any extra cost
> to the house!!.
>
> What I am seriously thinking of doing is adding a pair of wires to each box,
> light, etc, home running them to some convient location where I have access
> to (although hidden from the normal daily life), thus giving me a few
> choices on controls.
Even if you do go the X10 route make sure that your electrician runs a
neutral wire to all your light switches. In a lot of houses (here at
least) they only run the live wire to the switch and back. You need both
to do power line comms.

Quentin

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2001\08\16@122416 by Olin Lathrop

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> That may be true...however, part of me just wants to build some stuff.
>
> I can get nearly everything I need sampled or cheap thru our distributors,
> so I still might be able to build cheaper than buying.

If you want to wire a new house with some sort of low-overhead LAN for
control projects, take a look at CAN.  You could probably run CAN reliably
at 250Kbits/sec for something the size of a house.


********************************************************************
Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, TakeThisOuTolinEraseMEspamspam_OUTembedinc.com, http://www.embedinc.com

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2001\08\16@131701 by Micro Eng

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IN this case I am the electrician, and by default, I always have a common in
each and every box.


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2001\08\16@132141 by John Ferrell

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It will be pretty hard to "roll your own" for as little as you can buy it.
Special items & control systems excepted.

I have a friend who has a Vic 20 running Basic as a full time controller. He
says when he runs out of Vic 20's he will work on the problem...

John Ferrell
6241 Phillippi Rd
Julian NC 27283
Phone: (336)685-9606
Dixie Competition Products
NSRCA 479 AMA 4190  W8CCW
"My Competition is Not My Enemy"



{Original Message removed}

2001\08\17@012532 by Vasile Surducan

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On Thu, 16 Aug 2001, Quentin wrote:

> Even if you do go the X10 route make sure that your electrician runs a
> neutral wire to all your light switches. In a lot of houses (here at
> least) they only run the live wire to the switch and back. You need both
> to do power line comms.
>
 With a little modified x10 hardware, you don't need neutral, if you are
using standard bulbs ( like Edison discovered a long time ago ) and you
communicate only when the bulb is off. Probably it works with high
efficiency bulbs also...

Vasile

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2001\08\17@042501 by Peter L. Peres
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> common

I heard that it is enough to drive a 5 cm nail into the wall inside the
junction box (not drywalls). The RF tank is grounded through there. Not a
recommended solution imho but it should work. The leakage would be
determined by the tank coupling capacitors (usually 1 nF 2kV).

Peter

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2001\08\17@055153 by Jim

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If you are looking at how to wire a new home, there are structured wiring
models to follow that will allow for new technologies. http://www.onqtech.com


{Original Message removed}

2001\08\17@055823 by Peter L. Peres

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> You forgot #5...look honey...I can do this and it won't add any extra
> cost to the house!!.

... only 800 man-hours which you will supply for free ;-). Ok, maybe only
80.

Peter

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