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9 The `Adafruit Data Logger Shield`_ rev. B features an `NXP PCF8523 Real-Time Clock/Calendar with
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46 .. [1] The user LEDs are not connected to ``D3`` and ``D4`` by default. Jumper or jumper wire
51        wire connection must be established between the ``SQ`` pin and the ``Digital I/O 7`` pin in
53        callback). The ``INT1`` interrupt output is open-drain, but the shield definition enables an
54        internal GPIO pull-up and thus no external pull-up resistor is needed.
65 Set ``--shield adafruit_data_logger`` when you invoke ``west build``. For example:
67 .. zephyr-app-commands::
68    :zephyr-app: tests/drivers/rtc/rtc_api
74    https://learn.adafruit.com/adafruit-data-logger-shield/
76 .. _NXP PCF8523 Real-Time Clock/Calendar with Battery Backup:
77    https://www.nxp.com/docs/en/data-sheet/PCF8523.pdf