PIR sensor orientation
Aaron last edited by
I was reading about PIR sensors and how they work. I came across this image and found it quite useful.
If I understand it right, because you have to move across the detection area from left to right or vice versa, detecting motion coming straight at the sensor is difficult.
Here's a question for the tech guys: if the camera had dual PIR sensors, one in the horizontal orientation and a second in vertical orientation, would that solve the problem of direct approach to the camera?
Crimp On last edited by
My guess is "no" and that PIR sensors already detect objects moving "up or down". It is the "straight on" issue that PIR cannot handle.
PIR sensors are a standard, mass produced module that seems to be "it does what it does, takes almost no power, and is cheap."