Real Time Clock (DS1302) Module

Real Time Clock

This module allows you to use your Arduino to do many time and date related things like starting something at a specific date and time or to record the date of time of something like the time a sensor were triggered.

The backup battery makes sure that the time and date are kept accurate even if your Arduino is powered off.

– DS1302 timing IC
– This real time clock has the ability of calculating prior to the 2100 second, minute, hour, day, week, month, year, and the ability to adjust a leap year
– Wide working voltage: 2.0~5.5 V
– When The working voltage is 2.0V, the current is less than 300nA
– Read/write clock or RAM data have two transmission modes: Single-byte / many bytes group
– Simple 3 line interface. Easy to install

Pin out

VCC -> Arduino +3.3V
GND -> Arduino Gnd
CLK ->  (SCLK_PIN)
DAT -> (IO_PIN)
RST -> (CE_PIN)