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@...> 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]
Message
Re: [lpc2000] Re: Is LPC2138 UART levels OK for a 5V part?
2005-11-11 by Jim Parziale
Attachments
- No local attachments were found for this message.