JY-MCU Mini RTCpro DS3231 High Precision Time Clock Module Ardui no

JY-MCU Mini RTCpro DS3231 High Precision Time Clock Module Ardui no

Features:
- Use DS3231 realtime clock chip, IIC speed 400KHz
- Reserve AT24Cxx IIC port EEPROM storage port
- Integrated with 32.768KHz temperature compensation, 0~40°C 2ppm precision, erro is 1mins in one year
- Built-in temperature sensor, 3°C precision, resolution 0.5°C
- Soldered CR927 3V battery
- Power port input with polarity reverse protection tube
- With power indicator lamp
- Lead out SQW/INT and 32khz square wave output port
- Dimensio: 3.42*1.52cm