If possible, add another call and use 7805. but after an hour of use the voltahge will fall below the I/O differental of 2.5V.then the problem comes.
As many devices work upto 3.3V, why not consider using 3 cells at 4.5V?
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If possible, add another call and use 7805. but after an hour of use the voltahge will fall below the I/O differental of 2.5V.then the problem comes.
As many devices work upto 3.3V, why not consider using 3 cells at 4.5V?
Regards,
Sarma
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