I’m looking for a very short range (one foot or less) sensor to trigger some patio lights with a wave of a hand. Is there anything out there?
thanks
Mike
Search for “Optical Proximity Sensor”.
I once got a whole bunch for free from a factory that replaced theirs.
If you want to bring distance into the equation, look at these:
http://parts.digikey.com/1/parts-kws/distance-sensor
Welcome to the community!
Thanks realiser!