Beginner Parts Kit Identification Guide

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Contributors: jimblom, bboyho
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555 Timer

Closing up the cast of components is this staple of timing circuits.

555 Timer

555 Timer

COM-16473
$0.95

It's a component whose use is so open-ended that contests are held to see who can conceive of the most useful, complex, and/or artistic use of the thing. With the 555 at the heart of a circuit, and a handful of choice resistors and capacitors, you can create a variety of waveforms that oscillate at frequencies from thousandths to hundreds of thousands of a Hz.

555 Timer Annotated

Pinout and Schematic Taken from the Datasheet and Wikipedia

Looking for more examples with the 555? Check out the link below for 555 timer circuits.