Adafruit DS3231 Precision RTC - STEMMA QT

The DS3231 is an exceptionally precise Real Time Clock module, expertly designed with integrated I²C, TCXO, and crystal features. Its high accuracy is maintained through an internal temperature sensor that compensates for drift caused by temperature changes.

Equipped with STEMMA QT connectors, this breakout board allows for seamless plug-and-play use without the need for soldering. Compatible with both 3.3V and 5V logic levels, it's versatile enough to integrate with various microcontrollers, including Feather, Raspberry Pi, Arduino, and Metro328.

Ideal for data logging, clocks, or any application that demands precise timekeeping, the module continues to work accurately even when main power is lost, thanks to its coin cell battery-backup capability (CR1220 required, not included).

Effortlessly connect using I2C with just two wires and power, while taking full advantage of CircuitPython/Python or Arduino drivers for effortless interfacing. Delivered as a fully assembled and tested breakout, it includes a small piece of header for additional connection options.