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Post by Gary Lecomte on Apr 27, 2007 19:45:55 GMT -8
There is Absolutly No Problem Driving the Pizo Directly from the 555. Even the DC Out Isn't a Problem for the pizo. But a Small Cap could be added to Block that DC if so wanted.
I Left the Pizo Running Continuous on Purpose, but that can be changed quite easily. However, Who is to say you will be there to Hear it in a Short 15 Second Period. It could go off while your sleeping or out for a few minutes.
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Deleted
Deleted Member
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Post by Deleted on Dec 1, 2008 0:09:03 GMT -8
I am interested in your sensor, could be just what I have been looking for.
Reg
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Post by Gary Lecomte on Dec 1, 2008 7:43:54 GMT -8
I am interested in your sensor, could be just what I have been looking for. Reg Not sure if you mean My Design or rmeyn's design? Unfortunately I deleted mine from that tempory folder. And now I can't find it on my computer.
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rmeyn
Full Member
My primary interests are electronics, sailing, bowling, and camping
Posts: 163
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Post by rmeyn on Dec 3, 2008 18:06:48 GMT -8
Judging by the number of viewers, there still seems to be many that are interested in my water level monitor circuit. I am posting it with a new link. I've reduced the size as much as I can where it is still readable. The circuit was designed with Pspice originally. I bread boarded it and it performed as expected. I make no guarantees as to the suitability of this circuit. It's here for those who wish to experiment. I still stand by my belief that the 15 second audible alert will be useful. It will only activate while water is being drawn (washing the dishes, one's hands, etc.) The 1/4 level cannot be reached unless you are drawing water. If you miss the alert ,you still have the led light display to observe. www.knottyaldermouldings.com/circuits/water%20level%20monitor%20and%20alarm.bmpYou will have to modify your monitor size to view it properly. Richard M. I attempted to post this directly with the tags as referenced in an earlier post and it did not work
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