steve10101 Posted October 20, 2015 Report Share Posted October 20, 2015 Hey guys,I'm trying to make a proximity alarm and having trouble finding info. I can find plenty of examples for projects for an alarm and transmitter where as soon as the transmitter is a certain distance away the alarm flashes. What I'm wanting is the opposite, as soon as the transmitter is within a certain distance the alarm flashes. I'm sure this is as simple but I'm completely new to electronics so have no idea if its as simple as reversing a few things etc??? I don't even know the correct name for this product?? Any help or direction on this subject would be greatly appreciated.Cheers Jacquelyn Norris 1 Quote Link to comment Share on other sites More sharing options...
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