DS1337 RTC
DS1337 Real Time Clock (RTC)
Wiring diagram for the DS1337 RTC.
Scheme notes:
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Scheme shows a 555 component but is must be a Ds1337 RTC
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Crystal must be a 32.768 kHz, directly wired to 1 and 2 pins of DS1337.
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Pull-up resistances are 10kOhms
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The real battery is a 3V Li coin battery inside its socket CR2032.
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Arduino Power is not showed in the scheme