RTC IIC I2C IIC DS3231SN Echtzeit Uhr Modul ChronoDot V2.0 für Arduino
3,63 €
Use DS3231SN precision clock chip, built 32.768 crystal. The pull-up resistor R1 R2 own welding on the I2C bus. You can output 1Hz signal, a second output signal. If you don't receive. All products are quality checked.
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