Circuit: LONG PERIOD COMPUTER WATCH DOG TIMER __ Circuit designed by David A. Johnson, P.E.

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Last Updated on: Saturday, December 23, 2017 02:27 PM

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LONG PERIOD COMPUTER WATCH DOG TIMER

This circuit uses a simple 4060 IC oscillator/timer that is reset periodically by a computer. Should the computer fail to send a pulse, the output changes state. The time can easily be set from seconds to hours.

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