eliseguimaraes
Newbie level 1
![Newbie level 1](/styles/images/ranks/alevel1.gif)
I am doing a project where one of the entries is 1 when there's someone at a place and 0 when there's no one (more specifically, in front of some sensor). I need some device that does that, like an infrared sensor or something, but I need help. Could you suggest something (any sensor that outputs one when presence is detected right in front of it, in a short distance). Thank very much.