Re: RFID for HA

[Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

On Tue, 18 Apr 2006 18:09:17 GMT, Marc F Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>
wrote in message  <idaa42pifk9fn6bij59onk3sm61lljo5c0@xxxxxxx>:

>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
>
Here's a long list of hardware mods

http://wiki.openwrt.org/OpenWrtDocs/Customizing

including:

Mr-Packethead OpenWrt water-tank project
http://www.frazer.net.nz/wrting/wrtprojects.htm.

Adding a weather station
http://david.zope.nl/hardware/wl500g/wx200wl500g/

Apparently All WRT54G have an available 8-bitGPIO port.
http://www.byteclub.net/wiki/index.php?title=Wrt54g

Bluetooth. This could identify _who_ is in the car based on which blue-tooth
enabled cell phone was on.
http://david.zope.nl/hardware/wl500g/wx200wl500g/


... Marc (who's multitasking  -- I'll need to go back and actually read this
when brain activity is less fragmented.... )

Marc_F_Hult
www.ECOntrol.org