Chain three 555s together to create a gadget that will allow you to impose a time limit in games like checkers or Scrabble.
The post The Biggest Little Chip: An Intro to the Versatile 555 Timer appeared first on Make: DIY Projects and Ideas for Makers.
from Make: DIY Projects and Ideas for Makers https://makezine.com/2017/12/08/555-timer-intro/
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