How to check if PIR sensor is OK.

Other Hardware Sensors
1

I have a set up where multiple Uno R3s communicate. Each one has several PIR sensors attached. They cover an area to let me know if any coyotes attack a remote chicken coop.

How can I "querry" a PIR to determine if it is working or not? Is there some way for the Uno it is attached to to "ask it" to respond so I can determine if each PIR is active and working?

Thanks in advance.

Sam

2

A common/cheap Arduino PIR sensor is a "dumb" device, so you can't communicate with it.
The only way to see if it's working is to actually walk in front of it.
An indicator LED near the PIR migh be useful.
Leo..

3

Thank you Leo!

I should have thought of that!

:frowning:

Sam