Lpc2000

Yes, we talked about it in a early stage but as I don't have any
knowledge in radio and some customers said that they dont want more
radio interferance in their plants made us leave it at that time.

The radio module I'm looking at now is for connecting the control room
with the plant instead of using up to 500 meter of cable. And if the
plant is divided up in two, three groups use radio to make it as one
to the control room.

But, that will take some study from my side. Seen some nice ready
built ones for OEM use with a UART interface to them so maybe I don't
need to learn it all myself!

Please post the web page if you can. I do like to see it!

Cheers
/Johan

--- In lpc2000@yahoogroups.com, Jim Parziale <nuncio.bitis@g...> wrote:
>
> Have yuo considered wireless mesh network nodes as opposed to such long
> cables? I used to work with 802.15.4 and Zigbee, and that company
had a good
> working solution. I could post the web page if anybody's interested...
> 
> Jim
> 
> On 11/11/05, fredrikssonjohan <johan@s...> wrote:
> >
> >  We are reading temperatures in silos (bins) mainly with grain but
also
> > animal food or other sensitive to heat products.
> >
> > It's 10-90 meter silos with 1-12 cables in each and 1-20 silos and
> > 4-16 sensors per cable. Biggest system as per now is 20 silos, 240
> > cables and 2400 sensors. All connected with about 8.5km of wire.
> >
> > Just changing from PIC16 to LPC2138 as "heart" of the system. Spent
> > some days just going thrue all data sheets and sometime you just loose
> > focus, as with the UART, to find all specifications and values.
> >
> > Cheers
> > /Johan
> >
> > --- In lpc2000@yahoogroups.com, "Ake Hedman, eurosource" <akhe@b...>
> > wrote:
> > >
> > > Fredrik,
> > >
> > > >please upload to file area if possible!
> > > I will do that.
> > >
> > > >....1200 sensors...
> > > May I as what you do!?
> > >
> > > Cheers
> > > /Ake
> > >
> >
> 
> 
> 
> --
> ----------------------------------------------------------
> Jim Parziale
> Malden, MA
> ----------------------------------------------------------
> 
> 
> [Non-text portions of this message have been removed]
>