An on-board Maxim Integrated DS3232 device provides a very accurate, temperature-compensated real-time clock (RTC) resource with:
* Temperature-compensated crystal oscillator
* 236 Bytes of Battery-Backed SRAM
* I²C Interface
Backup power is provided through the RTC_VBAT (signal: * on Bora it is connected to J2.113) signal* on Bora Lite it is connected to J1. 22 If not used, RTC_VBAT must be externally connected to GND. For a detailed description of RTC characteristics, please refer to the DS3232 datasheet. <section end=Body/>