Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Easy.
Record an MP3 of a baby crying and play it back on an MP3 player.
Of course you would need a little amplifier and speaker and a power supply for the stuff.
A Cmos transmission gate can be used to turn on the sound activated by the burglar alarm and you just leave the MP3 player playing over and over since it doesn't have moving parts to wear out.
Burglars don't like hearing babies crying? Not all parents stay home with them you know.
When the alarm is tripped, have the circuit engage a large hammer which will smash the toe of the intruder to smithereens. The sound that he makes will probably be just what you want.
There are an indeterminate number of new fathers who might consider giving you their baby-crying sounds when it's 1am ... 2am ... 3am ... 4am ... 5am.
Guinea hens sound like squalling babies. Buy a bunch of them. They make all kinds of racket when there's an intruder in the drive.
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