5PCS DS3231 AT24C32 IIC RTC Clock Timer Memory Module For Arduino Replace DS1307
DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeepin
$7.79
$12.99
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