$50 long-range active RFID for HA

[Marc_F_Hult <MFHult@xxxxxxxxxxxxxxxxxxxxx>]

There has been considerable interest in long-range active Radio Frequency
Identification (RFID) for use with home automation systems.

One can get a set of active (315 MHz or 433MHz) RFID receiver (with RS-232
interface) and transmitter  PCBs with a claimed range of 8 meters (keyfob)
40 meters (car accessory) for about $50 depending on device, enclosures and
antenna chosen.

http://www.wingsnwakes.com/products.php?category_id=57

And here are complete ' CheaperRFID ' devices:

http://www.wingsnwakes.com/products.php?category_id=61

And the Hong Kong supplier
http://stores.ebay.com/Ananiah-Electronics_Active-RFID_W0QQcolZ4QQdirZ1QQfsubZ6029549QQftidZ2QQtZkm

These devices reportedly send a four-digit alpha-numeric signature that
takes 11 milliseconds to transmit every 2.5 seconds with CR2025 (coin)
battery life of ~5000 hours.

User guide, FAQ, VB demo ActiveX control are available zipped up here:
http://www.ananiahelectronics.com/RF8315T.htm


There is an active Homeseer forum about these devices and HS plug-in
development:
http://board.homeseer.com/forumdisplay.php?f=869


... Marc
Marc_F_Hult
www.ECOntrol.org