DS3231 RTC Memory Module Precise Real Time Clock I2C AT24C32 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..
Along with the DS1307 real-time clock,
the module also has an Atmel 24C32 EEPROM chip which is handy for
storing data without worrying about power loss. There is also space on
the board to solder your own DS18B20 temperature sensor.
This is Tiny RTC Real Time Clock DS1307
I2C IIC Module for..