DS3231 Real Time Clock and EEPROM I2C module for Arduino and Raspberry Pi Projects. Includes software.Designed by SwitchDoc Labs, Ships from United States of America
The SwitchDoc Labs DS3231 Real Time Clock Module contains two devices. It contains a Maxim DS3231 high accuracy temperature compensated Real Time Clock and an AT24C32 32Kbit EEPROM organized as 40...Read More…
The SwitchDoc Labs DS3231 Real Time Clock Module contains two devices. It contains a Maxim DS3231 high accuracy temperature compensated Real Time Clock and an AT24C32 32Kbit EEPROM organized as 4096 8 bit words of non-volatile storage. According to tests done at SwitchDoc Labs (seen below), the DS3231 is the clear winner with a measured accuracy of less than 0.3PPM (Parts Per Million) or in other words, losing or gaining less than 0.026 seconds per day.
Works for 3.3V and 5.0V I2C voltages - both Arduino and Raspberry Pi computers.
The software supports both the DS3231 timekeeping functions, the internal temperature sensor of the DS3231 and the AT24C32 EEPROM device.
SwitchDoc Labs has run months of performance and validation tests on this DS3231 Module and compared it to other Real Time Clocks. We selected the DS3231 because of it's superior accuracy. We are measuring the results in PPM (Parts Per Million). For example, losing 1 second per day is a drift of 11.5 PPM while 1 PPM is a drift of 0.0864 seconds per day. The PPM (Parts Per Million) measured error is shown on the graph below:
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Ovide | Sept. 16, 2016
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