The microcontroller does, however, need a decoupling capacitor and the inclusion... | Hacker News

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		pjc50 on Feb 20, 2016 \| parent \| context \| favorite \| on: 555 timer teardown: inside the world's most popula... The microcontroller does, however, need a decoupling capacitor and the inclusion of a program in manufacturing. It may also be pickier about power supplies.

mrob on Feb 20, 2016 [–]

True, but ideally the 555 should have a decoupling capacitor too, and the decoupling capacitor is very small and cheap.

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