I need to sense proximity 360 degrees around something at a range of 0 to 100cm (around 3 feet). I would like to know how close someone is, but will settle for binary input if necessary. This is for an outdoor sculpture and thus overhead video tracking solutions are not an option. I have 9 of these …

Alternatives to IR array or PIR for 360 degree sensing

michinyon May 29, 2014, 3:03am 13

Aim for the face.

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