Movement-/ distancesensor for art

Hello,

i am searching for a small sensor which should detect people walking beneath a picture. I think max. distance one meter.

The sensor should be small and dark.

May someone recommend me an easy to use sensor (max. two pins free)?

Greetz Chris

Chris72622: Hello,

i am searching for a small sensor which should detect people walking beneath a picture. I think max. distance one meter.

The sensor should be small and dark.

May someone recommend me an easy to use sensor (max. two pins free)?

Greetz Chris

The HC-SR04 would probably work great for this. You can get them for a couple bucks on eBay.

Tim

Sorry, it's too big. I am searching for a sensor as big as a led, or so.

Greetz Chris