Please visit my Instructable for an introduction to the 555 timer, pinouts, and several applications for the 555 in astable mode: http://www.instructables.com/id/Hack-Your-Snap-Circuits-a-Minimalist-Very-Few-Co/?ALLSTEPS
![555 Timer Hacks: Cable Testers, Magnetic Stirrers, and Lego Grabbers Oh My!](https://img.gadgethacks.com/img/89/08/63487206893181/0/555-timer-hacks-cable-testers-magnetic-stirrers-and-lego-grabbers-oh-my.w1456.jpg)
Please visit my Instructable for an introduction to the 555 timer, pinouts, and several applications for the 555 in astable mode: http://www.instructables.com/id/Hack-Your-Snap-Circuits-a-Minimalist-Very-Few-Co/?ALLSTEPS
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