DS3231 RTC Timer Module for Arduino & Raspberry Pi | High-Precision Real Time Clock
The DS3231 RTC Timer Module for Arduino & Raspberry Pi | High-Precision Real Time Clock is a low-cost, extremely accurate I2C real-time clock with an integrated temperature-compensated crystal oscillator. Maintains accurate timekeeping even when the main power is off.
Key Features
- Highly accurate RTC
- Integrated crystal oscillator
- Temperature compensation
- I2C interface
- Battery backup support
- Two alarm clocks
Technical Specifications
- Model: DS3231
- Accuracy: ±2ppm (0°C to +40°C)
- Interface: I2C
- Voltage: 3.3V – 5V
- Backup: CR2032 battery (not included)
- Temp Sensor: ±3°C accuracy
Applications
- Data logging with timestamps
- Alarm clocks
- Timer controls
- Event scheduling
- Power-off timekeeping





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