ChronoDot V2.0 Real-time Clock Module [HKD I2C REAL TIME CLOCK- DS3231S] .::. Communica Online

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RTC I2C DS3231SN ChronoDot V2.0 Real-time Clock Module

Part No: HKD I2C REAL TIME CLOCK- DS3231S

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Can provide arduino library files and routines
Using DS3231SN high-precision clock chip, built-in 32.768 crystal
Can provide accurate year, month, day, hour, minute, second, morning and afternoon data
Can output 1Hz signal, output a signal per second
You can use the CR1220 button battery to keep going
I2C bus pull-up resistor welding R1 R2
Small size 3cm in diameter
Pin spacing 22.86mm