The RTC module is specifically designed for Raspberry Pi. It communicated with Raspberry Pi through I2C bus. There is a Maxim DS1307 and CR1220 button cell on the board to keep the real time for a long time after the Raspberry Pi has it’s power down. Set a serial port, TTL convenient way online debugging

Features:

• Use Maxim DS1307 chip
• Extends CR1220 button cell backup
• Can be operated by a shell
• Set a serial port connector
• Programmable square-wave output signal
• Consumes Less than 500nA in Battery-Backup Mode
• Automatic Power-Fail Detect and Switch Circuitry
• Programmable Square-Wave Output Signal

Port:

• Raspberry Pi B module 2X13 connection port
• Raspberry Pi A+/B+/2 module 2X13 connection port
• 2*5pin 2.54mm connector

Parameters:

• Accuracy ±2ppm from 0°C to +40°C
• Work voltage 5V
• Battery Backup Input for Continuous Time keeping
• Real-Time Clock Counts Seconds, Minutes,Hours, Day, Date, Month, and Year with Leap Year Compensation Valid Up to 2100
• Work temperature 0°C to +70°C

Typical Application:

• Smart home
• Utility Power Meters
• Telematics

Package Includes:

• 1x RTC Module for Raspberry Pi
• 1x Button Cell