Description
A high‑precision RTC module designed for embedded and IoT applications, providing accurate timekeeping even during power outages. Powered by the highly reliable DS3231 chip with built‑in temperature compensation and a battery backup system.
Key Features:
Ultra-accurate timekeeping: via temperature-compensated crystal oscillator (TCXO), with drift as low as ±2 ppm (0–40 °C) and ±3.5 ppm (–40–85 °C).
Battery-backed memory: runs on CR2032 coin cell to preserve time during power loss. Seamless I²C interface: (fast 400 kHz) compatible with 3.3–5.5 V systems.
Built-in digital temperature sensor: 10-bit resolution (~0.25 °C), ±3 °C accuracy. Onboard EEPROM (AT24C32): 32 Kbit non-volatile memory for user data storage.
REAL TIME CLOCK (RTC) MODULE
Specifications:
RTC Chip: DS3231 Interface: I²C up to 400 kHz
Operating Voltage: 2.3–5.5 V DC Backup Battery: CR2032 coin cell (configurable for LIR2032)
Time Accuracy: ±2 ppm (0–40 °C), ±3.5 ppm (–40–85 °C) Alarms: 2 × time-of-day alarms
Temperature Sensor: 10-bit, ±3 °C accuracy EEPROML: AT24C32 – 32 Kbit I²C
Dimensions: ~38 × 22 × 14 mm, ~8 g
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