This RTC module with DS3231 compatible real time clock chip and additional 32kB EEPROM connects to micro controllers like Arduino or Raspberry Pi by a 2-wire I2C bus. We ship it with a fresh CR2032 backup battery to keep the correct time also when the power supply is disconnected.
Please find data sheets for DS3231 and 24C32N chips online.
- 2-wire connection SDA/SCL
- Operating voltage 3.3V – 5.5V DC
- Box content: 1 x RTC module, 1 x CR2032 battery
- Libraries (for example Arduino) available