On Wed, Apr 21, 2010 at 3:55 PM, Itay Donenhirsch <i...@bazoo.org> wrote:
> hi > if you already mentioned avr and would like to build things yourself then > you can definitively build it yourself, see > tuxgraphics.org/electronics/200606/article06061.shtml (you'll need an > enc28j60 as well). > > you can buy avrs through ebay/digikey/mouser or in israel either arihav or > some stores in shdreot bnei zion, ta. > > thanks. but it still seems too expensive and time consuming. > <http://tuxgraphics.org/electronics/200606/article06061.shtml>a question > though - why ethernet of all things? why not lay an rs-232 cable (avrs got > internal uart for that) + max232 for the voltages and be done with it? > 1. i have ethernet. i do not have rs232. that's what i have. 2. rs232 specs say it is for 15meters (which is too short anyway) 3. only one computer can connect to an rs232. so i need to set up a server for the rs232 <-> ethernet, which i do not want to. > itay > > > 2010/4/21 Erez D <erez0...@gmail.com> > >> hi guys. >> >> i have a warehouse. it has two connections to the buildings - power and >> ethernet. >> >> i want to control the warehouse external lights from the house. >> >> I thought of buying an X10 light switch, but it seems that each consts >> around 50$, which is expensive >> so my other option is a computer i can control (prefferably a linux box, >> somthing like nslu2). >> >> so: >> 1. anybody knows of a cheap place to buy X10 stuff (or somthing similiar) >> ? >> 2. what is the cheepest "computer" (doesn't have to be a full computer, an >> avr with ethernet and gpio will do) ? >> >> thanks. >> erez. >> >> _______________________________________________ >> Linux-il mailing list >> Linux-il@cs.huji.ac.il >> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il >> >> >
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