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Need help with noise activated switches and relays.

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My name is Michael from Anchorage. This is my first post. I will say that this is a very cool site.

What I am trying to accomplish is starting a clock timer in MS Access and stopping the same clock with noise. I have already made a timer in MS access. I can start and stop it with command buttons all day long but need and automated system for more precise accuracy of times. My plan is to have one noise activated switch trip a relay for a signal to start the timer and a second noise activated switch in another location to stop the timer.

Now I am pretty sure I can put together the mic's with a kit of sorts but my delima is that I dont know how to interface this with my software in ms access.

Does anybody have any ideas or thoughts?

Thanks in advance for your help.
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