On Wed, Apr 21, 2010 at 5:59 PM, Itay Donenhirsch <i...@bazoo.org> wrote:
> > > On Wed, Apr 21, 2010 at 4:04 PM, Erez D <erez0...@gmail.com> wrote: > >> >> >> 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. >> > > np, but it can be fun to build such a thing. > been there, done that. > > >> >> >>> <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. >> > > Do not have rs232? What the world had come to... > i do not have rs232 cable. i have cat5e cable under the floor. i am not openning the floor to add another cable, nor am i using the cat5e cable for rs232. > > >> 2. rs232 specs say it is for 15meters (which is too short anyway) >> > You can easily build a repeater using a single MAX232. > > >> 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. >> >> You can connect rs232 to a computer which have ethernet, etc.. > > Ofcourse that all what i've written is only if you got the time, and I > agree ethernet is much sexier :) > > You can always get an Arduino with an ethernet shield (ps, i hate arduinos > but that's for another discussion), gives you all you want I guess. > > Itay > > i have a slug ( nslu2 ) i use as a web server. maybe i will move it to the warehouse and use it as an ethernet <-> whatever bridge ..
_______________________________________________ Linux-il mailing list Linux-il@cs.huji.ac.il http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il