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What can I do with piezo buzzers/sirens/beepers, switches, safety switchs, and other basic components? Answered

I have some components I really like, but I don't know how to use them!!!
 (resistors, leds, 555 timers.. etc.)? relays even?

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iceng

7 years ago

You can get a head-ache.

or

You can get my favorite a smart tap-tap----tap type binary serial unlock code buried inside of a car door.

A

go search online

Search 'buzzer' and you'll find a tonne of ibles.