How-To Geek on MSN
5 clever uses for a presence sensor you can set up in an afternoon
Do more than just turn on your lights.
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Sometimes we need a non-contact liquid level sensor. There are several ways to build that, but the easiest is to try an optical liquid level sensor. You may already have an idea in mind since you are ...
Imagine that you’re starting a project where you need to measure temperature and humidity. That sounds easy in the abstract, but choosing a real device out of many involves digging into seemingly ...
The R58A features simplified setup via potentiometer adjustment of the switching threshold and switch-selectable light/dark operate. The sensor's short warm-up period, fast 10 kHz switching frequency ...
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