DS3234 RTC Breakout

Achieve highly accurate and reliable timekeeping in your projects with the DS3234 RTC (Real time clock) breakout. This module uses a temperature-compensated crystal oscillator (TCXO) with an integrated crystal, delivering exceptional long-term stability and accuracy compared to standard microcontroller clocks. It’s ideal for applications such as data logging, automation, industrial control, and other time-critical embedded systems.

The breakout communicates over a 4-wire SPI interface, making it a great choice for projects where I²C is unavailable or already in use. It tracks seconds, minutes, hours, day, date, month, and year with automatic leap-year compensation up to 2099. All DS3234 pins are broken out and the board is fully breadboard compatible, ensuring easy integration into both prototypes and finished designs.

A built-in CR2032 battery holder (battery not included) keeps time running even during power loss, while 256 bytes of battery-backed SRAM allow you to store critical data persistently. Additional features such as two programmable alarms, square-wave and 32.768 kHz outputs, and an integrated temperature sensor make this breakout a versatile and dependable solution for precise timekeeping projects.