If you are running from AC, You can get good accuracy by timing the 50 or 60Hz from the power transformer. If the AC goes away, you can turn on your
timer interrupt.
Just like the little alarm clocks with battery backup.
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If you are running from AC, You can get good accuracy by timing the 50 or 60Hz from the power transformer. If the AC goes away, you can turn on your
timer interrupt.
Just like the little alarm clocks with battery backup.
Charles Linquist
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