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AvionicsMaster1
- 11th May 2014, 03:19
Ladies and Gents, I've been asked to provide some sort of proximity sensor for a client. Ideally it would draw a meager amount of current so it could run off batteries and have a detection range of 1 to 3 meters.

What they want is that when you walk up to a display it will automatically start the program, run for about 30 seconds and repeat.

Your thoughts or comments would be greatly appreciated.

richard
- 11th May 2014, 04:23
HC-SR04 from Amazon
ultrasonic range detector has 2m range cheap and easy

aratti
- 11th May 2014, 09:07
Use a PIR detector.

Cheers

Al.

Acetronics2
- 11th May 2014, 14:33
+1

the advertisement gadgets activating animations for people passing by storefronts are built arounds PIR detectors ...

Alain