Serial data bus help needed [CROSS-POST]

Jan 11, 2008 5 Replies

Hi,



I need a serial bus can support speeds up to 10 mbit/s with error correction included and that can carry signal up to 50 meters (about 150 feet) with no signal repeaters. Is there such a thing that you know of?



The plan is to use Atmel's 8051 chips (haven't decided wich model exactly yet) to be attached to that bus and controlled by the master controller, a PC and to be able to do various switchy things with them (lights control, locks, etc). I've moved into a new home recently and i obviousley need to make it possible to lock myself in LOL.



Thanks for the input,



Boris


Ethernet !

Best Regards: Baron.

correction

no

Try one of these instead...

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Its a relay that can be controlled over a lan. It even contains a web server so you can monitor it's status. They have multiple output versions and some with inputs.

"CWatters" wrote in news: snipped-for-privacy@corp.supernews.com:

Hell yes! Just imagine the fun Flanders could have had in Sounding Brass, telling Swann that his lightswitches were on the internet. >:)

That *nearly* meets the OP's specs if he uses 10-baseT ethernet. (serial, 10Mb/s, error correction) but unfortunately isn't a bus and with the modules at ~$100 each, may not be that attractive to a hobbyist.

OTOH if he scrounges up some old RTL8019 network cards (probably the best in terms of easy availaibilty at scrap prices and free code on the net to drive it from an 8051), he could run 10-base2 Ethernet which

*fully* meets the specs he gave us (good up to 185 m) and would be even more fun than the *neat* bit of kit you showed us :-)
Ian Malcolm. London, ENGLAND. (NEWSGROUP REPLY PREFERRED) ianm[at]the[dash]malcolms[dot]freeserve[dot]co[dot]uk [at]=@, [dash]=- & [dot]=. *Warning* HTML & >32K emails --> NUL:

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More flexible and comes with source.

donald

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