RTC Shield for C2 
Real Time Clock Shield for the ODROID-C2
Attach this RTC Shield to the GPIO header on the ODROID-C2 to keep time when the C2 is offline. The Lithium coin battery can keep the RTC chip running for 3 to 4 years.
Compatible with the official ODROID-C2 case and many other cases.
- CR2032 coin cell, replaceable
- Dimensions: 20 x 20 x 13.5 mm
- Linux: Add the PCF7563 RTC driver
- Android: Update the OS to release 1.4 or newer