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Re: [lpc2000] Sensor networks was Is LPC2138 UART levels OK for a 5V part?

2005-11-11 by Ake Hedman, eurosource

Fredrik,

I'm very interested in sensor networks. Also something I have been 
working with for many years now and also do at the moment on  an open 
basis in the VSCP project (http://www.vscp.org)  aside of my  regular 
consulting work. 

Very impressing data for your system. You use RS-484. Never though of 
CAN instead?  Nice with distributed control as it solves arbitration and 
is reliable to a great extent.

/Ake

Any reason you

fredrikssonjohan wrote:

> Nice system for green houses or other "lighter" use. Our cables are
> heavy duty, taking a load of 4.5 tons each. As we are mainly in dusty
> environments we also face the need to meet the ATEX (explosive safe)
> regulations.
>
> We have from a handheld instrument (Windows CE) and a probe that you
> stick in to the grain to a central computer talking to distributed
> cards (LPC2138 + DS2480B) via a RS-485 network. 24/7 data collection
> with unlimited retension of data, alarm triggers individually per
> sensor / cable, alarm for raising or over temperature, reporting...you
> name it and it's in there :-)
>
> My next step is to add embedded webserver, radio modem, bluetooth and
> control panel as add-on cards to it.
>
> Cheers
> /Johan
>
> --- In lpc2000@yahoogroups.com, "Ake Hedman, eurosource" <akhe@b...>
> wrote:
> >
> > Thats a lot of sensors!!!   Impressive!  Have you seen the "Snaku" at
> > http://www.ibuttonlink.com/
> >
> > /Ake*
>
>
>
>
>
>
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-- 
 ---
Ake Hedman (YAP - Yet Another Programmer)
eurosource, Brattbergavägen 17, 820 50 LOS, Sweden
Phone: (46) 657 413430 Cellular: (46) 73 84 84 102
Company home: http://www.eurosource.se      
Kryddor/Te/Kaffe: http://www.brattberg.com
Personal homepage: http://www.eurosource.se/akhe
Automated home: http://www.vscp.org



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