[Date Prev][Date
Next][Thread Prev][Thread Next][Date
Index][Thread Index]
Re: Short range PIR's
--- In ukha_d@xxxxxxx, "Benfield, John"
<john.benfield@r...>
wrote:
> >You could use alternative technologies, such as beam break or
> >trans-reflective sensors.
Or... (some assembly required)
a BIK sensor, have a search throughthe archives, Mr Lowe demoed this
technology at UKHA2003
Or... (some assembly and coding required)
A polaroid ultrasonic sensor (kit set with a couple of sensors and
boards, about 50UKP, model number 6500). I have an unfinished
project using one of these to detect cats wandering in the back door
whilst it was open. Mounted above the door, little heait = animal,
big height = person. All looked good on the 'scope, but never
actually wrote the PIC code to make it work :-(
mad solutions 'r us
David.
UK Home Automation Meet 2004 - BOOK NOW!
http://www.ukha2004.com
http://www.automatedhome.co.uk
Post message: ukha_d@xxxxxxx
Subscribe: ukha_d-subscribe@xxxxxxx
Unsubscribe: ukha_d-unsubscribe@xxxxxxx
List owner: ukha_d-owner@xxxxxxx
Home |
Main Index |
Thread Index
|