The DS3231 RTC module is a low cost real time clock that is commonly used with microcontrollers to keep track of real world Date and Time. The module consists of two important ICs namely DS3231 and AT24C32 IC with a crystal oscillator, and a temperature sensor.
RTC modules are simply TIME and DAT..
SparkFun Real Time Clock (RTC) Module, this little breakout that uses the DS1307 to keep track of the current year, month, day as well as the current time. The module comes fully assembled and pre-programmed with the current time (MST) and uses small CR1225 Lithium coin cell battery (not included) t..