[Date Prev][Date
Next][Thread Prev][Thread Next][Date
Index][Thread Index]
Re: Re: Sensing stuff
- To: ukha_d@xxxxxxx
- Subject: Re: Re: Sensing stuff
- From: Nigel Orr <Nigel.Orr@xxxxxxx>
- Date: Mon, 10 Apr 2000 09:03:12 +0100
- Delivered-to: rich@xxxxxxx
- Delivered-to: mailing list ukha_d@xxxxxxx
- Mailing-list: list ukha_d@xxxxxxx; contact
ukha_d-owner@xxxxxxx
- Reply-to: ukha_d@xxxxxxx
At 13:45 31/03/00 +0100, you wrote:
>This topic is obviously an "interesting" Friday debate !!!
Back after a week's holiday, and I can't see a reply to your question...
>However, I must have missed the start of it all, what exactly is an
iButton
It's a little can, about the size of a button cell. There are 2
connections, power(also data) and ground. It's got a little chip inside,
which splurts out data when the power is disconnected in the right timing
sequence.
The networking standard is uses is called microLAN, and you can put loads
of them on a common pair of wires. There are i/o devices, thermometers,
and ID devices available- each device has a unique ID code. More detail at
http://www.ibutton.com or via http://www.dalsemi.com
They're most commonly seen in pubs, where each member of staff 'signs in'
on the till with one before ringing up your drinks. Look when you go in-
by the time you leave it might be too small to focus on...
And as someone has pointed out, there are a range of attractive (?) holders
available for the ibuttons- watch straps, rings etc...
Nigel
------------------------------------------------------------------------
Special Offer-Earn 300 Points from MyPoints.com for trying @Backup
Get automatic protection and access to your important computer files.
Install today:
http://click.egroups.com/1/2344/5/_/2065/_/955353783/
------------------------------------------------------------------------
Home |
Main Index |
Thread Index
|