Are there alternate ways to trigger PIR sensors

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#1
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I plan to use a tiny13 to detect gunfire. I can pretty well figure how to do that. Then I want to use that to trigger a game camera.

I would like to interface with the PIR sensor in the camera so I don't have to open it up and hack into it. I have no real idea on alternative ways to trigger this device quickly. First thought is an IR LED, but I'm not sure that would be the right wavelength.

Are there any ideas on how to do this? I have zero experience with these devices.

What it is for is to identify people that are shooting up my for sale signs in a remote location. They are rather expensive to replace.

Roger

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I'm not sure what a "game camera" is.

The drug stores around here have a number of cheap, blister packaged, digital cameras. Some are incredibly cheap.

Ought to be "easy" to hack the push button on those. Who cares if you can't even get the case back together? Just put the camera guts back into your new enclosure that holds your Tiny, power supply, etc.

How are you going to detect the gunfire? MEMs microphone attached to the sign would be one method.

JC

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But how do you know where to aim the camera? are the shooters on a road, usually in the same place or different? 2 cameras, 1 at ea end of the most likely shooter location to get the plate #. Shock sensor on the sign like doc said. Put another sheet of something behind the sign so you have a second hole to sight through to narrow down the location of the shooter to refine the camera locations.

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Game cameras are usually used for observing wildlife. They can be left unattended for months and have extended battery life. I would be worried about battery life on one of those "cheap" cameras

Aiming the camera shouldn't be a big problem and the camera has a wide enough field that I should be able capture the whole area.

Roger