Raspberry Pi RTC Real Time Clock Module DS1307 DS3231

DS1307 RASPBERRY PI RTC REAL TIME CLOCK MODULE REPLACEABLE BATTERY IIC I2C SERIAL PORT Description: RTC modules is used to save time, record the data, this module use farad capacitance, which is higher cost performance. This is the upgrade veion of the RPI RTC module with farad capacitor. Product features: DS3231 internal integration crystals circuit, less power coumption This module is suitable for the power to save time, record the data I2C communication, simple configuration Voltage: 5V Model B or B+ T-Cobber GPIO interface board RPI L298N motor driver board RPI 232 UART shield Model B or B+ 3-row GPIO extended board Model B or B+ 3-row Prototype board RPI B+ to B GPIO Convertor board RPI Temperature Seor Module NOTE: The Raspberry pi not included. This module need CR1220 battery, the batery not included.   DS3231 Real Time Clock Module RTC DS3231 3.3V/5V for Raspberry Pi Description: DS3231 high precision clock module for Raspberry Pi The module can also be used for Arduin