[asterisk-users] phone as control interface(was99bottlesofbeer)

[marcotasto]

Hi All, 
sorry if I post again this e-mail but I think the first one was lost.

I don't know if this is OT but I'm working in my spare time at  a small hardware project that match to what's requested below.
It's a board with Input/Output capabilities and 10Mbps ethernet interface. It has Microchip software TCP/IP stack on it. 
Being at a very beginning stage, you can see a little preview (and hopefully play with an online prototype) at this address: 

http://www.auto-matica.com/index.php?id=16

I've used it in the past to open a garage door when calling a private extension with Asterisk PBX and a little perl-AGI glue.

I hope could interest to someone and I'm open to any suggestion/collaborations.

Thank you and bye,
Marco.


----- Original Message -----
From: "John Faubion" <jfaubion at tx.rr.com>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users at lists.digium.com>
Sent: Tuesday, October 16, 2007 9:46 AM
Subject: Re: [asterisk-users] phone as control interface(was99bottlesof
beer)


>> has anyone actually been satisfied with the performance of these
>> powerline signalling devices ?
>
> Universal Powerline Bus is a vast improvement over the original X10. I
> believe the X10 devices used a 4V signal during the zero crossing point of
> the AC voltage to transmit 1 bit. Needless to say this made X10 slow,
> susceptible to line noise and not very reliable. IIRC X10 is only 75%
> reliable. By contrast, UPB is 20-40 times faster, it uses a higher
> signaling
> voltage so line noise isn't a big factor any more and has the advantage of
> controlling 250 times more devices than X10. This will help to prevent
> stray
> signals from the neighbors controller from accidentally controlling your
> devices. UPB is supposed to be 99.9% reliable with a latency of less than
> 100 milliseconds. Granted that still leaves a tenth of a percent of
> uncertainly. However that is without resorting to filters, couplers and
> the
> like.
>
>> Granted in an existing situation there may not be a way to run more
>> wires, but I evaluated them a while back and decided to stay away.
>
> You may want to take another look at them. Just like Asterisk has made
> great
> strides since the release of 0.7, UPB has brought the quality level way
> up.
> Of course this higher quality also has a higher price.
>
> John
>

Anyone on the list interested on working on a project where we can create
devices that work over Ethernet ?