The DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device incorporates a battery input, and maintains accurate timekeeping when main power to the device is interrupted. Features Highly Accurate RTC Completely Manages All Timekeeping Functions Real-Time Clock Counts Seconds, Minutes, Hours, Date of … Continue reading Wemos and DS3231 RTC example