RTC DS3231SN Real-Time Clock Module for Arduino Boards and DIY Projects

RTC DS3231SN Real-time Clock Module for Arduino

Features:

• Using DS3231SN high-precision clock chip, built-in 32.768 crystal oscillator

• Can provide accurate year, month, day, hour, minute, second, AM and PM data

• Can output 1Hz signal, one signal per second

• Can use CR1220 coin cell to keep time

• I2C bus pull-up resistor welded by itself R1 R2 by yourself

• Pin spacing 22.86mm

• Summary:** High-precision clock module with accurate timekeeping and 1Hz signal output

Package includes:

• 1 x Module

• 1 x Pin