-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Krzysztof
Drewicz
Sent: Tuesday, February 28, 2006 2:42 AM
To: [email protected]
Subject: Re: [Owfs-developers] RE: Help Designing a 1Wire system

DeanCollins napisaƂ(a):

>hello, thanks for your input...
>So will it be able to handle 100+ ports (divide by 8) approx 13 2408's? as
>well as a couple of keypads/buzzers/lcd screens?
>
>also how would i go about using a ibutton keyfob for user authorisation?
>instead of using a key to reset/turn on/off the alarm i want to use a keyfox
>with an ibutton in it. So it will just be touched to a reader then verified
>
>  
>
U could use memory chips with keys or even simple iButtons with 
thermometers, just checking the "unique ID" of any given 1-wire device.

I think a lot of solutions just use the cheapest DS1901 (DS2401) ID iButton. It
just has it's unique ID -- nothing else. You just confirm the ID is an
authorized one.


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