Adafruit DS3231 Precision RTC FeatherWing - RTC Add-on For Feather Boards

The DS3231 Precision RTC FeatherWing enhances any Feather main board with an I2C-integrated Real Time Clock, featuring a Temperature Compensated Crystal Oscillator for ultimate precision.

Most RTCs rely on external crystals that can drift with temperature changes. This RTC overcomes that flaw by incorporating the crystal within the chip, alongside a temperature sensor that dynamically adjusts clock ticks for unmatched accuracy.

Attach using Feather Stacking Headers or Feather Female Headers, and maintain full-time accuracy, even during power outages, with the optional CR1220 coin cell that supports battery backup.

Ideal for applications requiring precise timekeeping, like datalogging and clock setups. Includes comprehensive library and example code for Arduino or CircuitPython, making integration seamless with any Feather device.