DS3231 RTC Module (High Precision)

Overview

DS3231 real‑time clock module with high accuracy (±2ppm). I2C interface. Battery backup (CR2032). Temperature compensated.

Key Features

• I2C interface
• ±2ppm accuracy
• Battery backup
• Alarm outputs

Specifications

• Supply: 3.3–5V

Dimensions & Weight

• Length: ~25 mm
• Width: ~20 mm
• Weight: ~10 g

Package Includes

• 1 × DS3231 RTC Module

Applications

• Real‑time clock for embedded systems
• Data logging and time‑stamping
• Arduino and I2C projects