boards/shields/mikroe_rtc_18_click/doc/index.rst
.. _mikroe_rtc_18_click_shield:
MikroElektronika RTC 18 Click #############################
Overview
RTC 18 Click shield is built around the Micro Crystal RV-3032-C7 temperature-compensated real-time clock (RTC) module. The module offers I²C communication, integrated timekeeping with leap year support, alarm and interrupt features, and a battery backup switchover circuit.
The RTC is designed for high accuracy (≈ ±0.22 s/day) and extremely low power consumption, allowing it to retain time using a small backup battery when main supply is removed.
More information about the shield can be found at
Mikroe RTC 18 click_.
.. figure:: rtc_18_click.webp :align: center :alt: MikroElektronika RTC 18 Click
MikroElektronika RTC 18 Click (Credit: MikroElektronika d.o.o.)
Requirements
The shield uses a mikroBUS interface. The target board must define
a mikrobus_i2c and mikrobus_header node labels
(see :ref:shields for more details).
Programming
.. zephyr-app-commands:: :zephyr-app: samples/drivers/rtc/ :board: <board> :shield: mikroe_rtc_18_click :goals: build flash
References
.. target-notes::
.. _Mikroe RTC 18 click: https://www.mikroe.com/rtc-18-click