Timer with Preset Durations Using a 555

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In this video, the circuit of a simple egg timer using a 555 IC is attached to the battery holder, and the 4 minute timer is demonstrated. The preset durations (4, 6, and 10 minutes) are easily selected using the jumper connector. For a Fritzing diagram of the circuit, and a description of this simple project please visit the Instructable:

  1. JD Kato
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