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555 Contest Entry - PCB Etching Controller

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Published on Mar 1, 2011

All circuits in this entry are interlocked together, using a variety of the 555's capabilities. It uses monostable, astable, and flip flop modes to name a few. It also uses CD4017 counters to extend the delay times. Schematics can be found on my hackhut page. http://jonmstraub.hackhut.com/2011/02...

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