Re: RFID for HA

[Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

On Tue, 18 Apr 2006 16:19:36 GMT, Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>
wrote in message  <ce4a42dp7h3cpl42d9gj4ohr57tqmkgrol@xxxxxxx>:
>
>The price of WIFI routers has dropped below $50.
>
>Linksys open sourced the WRT54G Linux firmware in July 2003.
>
>http://www.linuxjournal.com/article/7322
>http://www.wi-fiplanet.com/tutorials/article.php/3562391
>
>They boot in a few seconds.
>
>All one would actually need is a 555 IC (or other timer) that would wait x
>minutes to power up any detectable characteristic of the router to
>distinguish between coming and going.
>
>Teaching the Linksys to do other things would be the gravy.
>
>... Marc
>Marc_F_Hult
>www.ECONtrol.org


Here's a hack to add Dallas 1-wire support to a WRT54G, including
temperature sensors, Quad AD, switches, RTC, counters and other 1-wire
goodies.
http://owfs.sourceforge.net/WRT54G.html

This adds two serial ports
http://www.rwhitby.net/wrt54gs/serial.html

This also adds 1-wire support
http://owfs.sourceforge.net/WRT54G.html

Between serial ports and 1-wire, one ought to be able to rule the world

Marc
Marc_F_Hult
www.ECOntrol.org