The RTC module is specifically designed for Raspberry Pi
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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 its power down. Set a serial port, TTL convenient way online debugging.
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
Raspberry Pi B module 2X13 connection port
Raspberry Pi A+/B+/2 module 2X13 connection port
2*5pin 2.54mm connector
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
1 x RTC Module
1x CR1220 Battery
Questions and Answers
Purchased this for my 23 year old daughter in the butterscotch color. Great versatile color. She loves the size -- perfect for day or going out at night. Chain can be double to shorten for nighttime and left long to wear as a crossbody during the day.
September 2, 2013 by
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