DS3231 Precision Real-Time Clock Module
—The DS3231 is a precision real-time clock module with a temperature-compensated crystal, holding time to within about two minutes a year and keeping it through power loss on a coin cell.
Specifications
- Accuracy ±2 ppm (roughly ±1 minute per year)
- Temperature-compensated crystal oscillator
- I2C interface
- Battery backup via CR2032 coin cell
- Two programmable alarms and a square-wave output
- Often paired with an AT24C32 EEPROM on the same board
What you can build with the DS3231 Precision Real-Time Clock Module
- Data loggers that must timestamp accurately
- Irrigation and lighting timers
- Clocks that survive a power cut
- Scheduled relay control
- Any offline project that cannot sync time from the network
Compatibility
Works with Arduino, ESP32, ESP8266 and Raspberry Pi over I2C using the RTClib library. Far more stable than the cheaper DS1307, which drifts noticeably with temperature.
Shipping
Dispatched from New Zealand with courier delivery nationwide, including rural addresses. Prices are in New Zealand dollars.
Availability: Sold out
The DS3231 is a precision real-time clock module with a temperature-compensated crystal, holding time to within about two minutes a year and keeping it through power loss on a coin cell.
Specifications
- Accuracy ±2 ppm (roughly ±1 minute per year)
- Temperature-compensated crystal oscillator
- I2C interface
- Battery backup via CR2032 coin cell
- Two programmable alarms and a square-wave output
- Often paired with an AT24C32 EEPROM on the same board
What you can build with the DS3231 Precision Real-Time Clock Module
- Data loggers that must timestamp accurately
- Irrigation and lighting timers
- Clocks that survive a power cut
- Scheduled relay control
- Any offline project that cannot sync time from the network
Compatibility
Works with Arduino, ESP32, ESP8266 and Raspberry Pi over I2C using the RTClib library. Far more stable than the cheaper DS1307, which drifts noticeably with temperature.
Shipping
Dispatched from New Zealand with courier delivery nationwide, including rural addresses. Prices are in New Zealand dollars.