'proximity detection using PIC'
I think this thread has been around before, but.....
I'm looking into low cost proximity detection using PIC to allow a
stationary, battery operated unit to detect the presence of a mobile unit.
The mobile unit could be powered, however size is a constraint and battery
longevity would be a concern.
Detection range would be less than 3-4 feet. Continuous detection is not an
issue - a once per minute check would be sufficient. Uniqueness of the
mobile unit is not an issue either.
I checked the Microchip RFID products but the receiver would be overkill
and cost prohibitive.
Electronic Visions, Inc.
1650 Barrett Drive
Rockledge FL 32955
More... (looser matching)
- Last day of these posts
- In 1999
, 2000 only
- New search...