.. _adafruit_adalogger_featherwing_shield:

Adafruit Adalogger Featherwing Shield #####################################

Overview

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The Adafruit Adalogger Featherwing Shield_ features an NXP PCF8523 Real-Time Clock/Calendar with Battery Backup_, and an SD card interface.

.. figure:: adafruit_adalogger_featherwing.webp :align: center :alt: Adafruit Adalogger Featherwing Shield

Adafruit Adalogger Featherwing Shield (Credit: Adafruit)

Pin Assignments

+-----------------------+---------------------------------------------+ | Shield Connector Pin | Function | +=======================+=============================================+ | D10 | SD card SPI CS | +-----------------------+---------------------------------------------+ | MOSI | SD card SPI MOSI | +-----------------------+---------------------------------------------+ | MISO | SD card SPI MISO | +-----------------------+---------------------------------------------+ | SCK | SD card SPI SCK | +-----------------------+---------------------------------------------+ | SDA | PCF8523 RTC I2C SDA | +-----------------------+---------------------------------------------+ | SCL | PCF8523 RTC I2C SCL | +-----------------------+---------------------------------------------+

Requirements

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This shield can only be used with a board which provides a configuration for Feather connectors and defines node aliases for SPI, I2C and GPIO interfaces (see :ref:shields for more details).

Programming

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Set --shield adafruit_adalogger_featherwing when you invoke west build. For example:

.. zephyr-app-commands:: :zephyr-app: tests/drivers/rtc/rtc_api :board: adafruit_feather_m0_basic_proto :shield: adafruit_adalogger_featherwing :goals: build

.. _Adafruit Adalogger Featherwing Shield: https://learn.adafruit.com/adafruit-adalogger-featherwing

.. _NXP PCF8523 Real-Time Clock/Calendar with Battery Backup: https://www.nxp.com/docs/en/data-sheet/PCF8523.pdf