RTC module DS3231 I2C - real time clock

Module with real time clock, allows you to read the time in hours, minutes, and seconds, and date: month, day, year. The device was based on the DS3231system, the communication interface is an I2C bus. The clock works withArduinoandRaspberry Pi.

Check how to connect the system withminicomputer Raspberry PiandArduino modules.

Remember to run the I2C bus in the Raspberry Pi before connecting the module (raspi-config).

• Supply voltage: from 2.3 V to 5.5 V
• Current consumption: from 200 µa (in standby mode 840 nA)
• Driver: DS3231 (documentation)
• Communications: I2C bus (SDA, SCL)
• The bus address: 0x68
• Indicates: seconds, hours, minutes, months, days of the week and the years
• Accuracy:
  • at a temperature of 0 °C to +40 °C: +/- 2 ppm
  • at a temperature of -40 °C to +85 °C: +/- 3,5 ppm
• Connectors: soldered female connector pitch 2.54 mm - compatible withgoldpin strips
• The dimensions of the plate: 14 x 14 x 14 mm (with connectors)

• Documentation of the chip DS3231
• Manual + program for Arduino
• Connection example with a Raspberry Pi 3
• Example of connecting to a Raspberry Pi #1
• Example of connecting to a Raspberry Pi #2