2023-09-21 21:38:19 +08:00
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.. zephyr:code-sample:: x-nucleo-53l0a1
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:name: X-NUCLEO-53L0A1 shield
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:relevant-api: sensor_interface gpio_interface
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2021-09-05 03:26:22 +08:00
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2023-09-21 21:38:19 +08:00
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Interact with the 7-segment display and VL53L0X ranging sensor of an X-NUCLEO-53L0A1 shield.
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2021-09-05 03:26:22 +08:00
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Overview
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********
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This sample demonstrate the usage of the 4 digits x 7 segments display and the
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three VL53L0X ranging sensors on the :ref:`x_nucleo_53l0a1_shield`.
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When flashed on a board, 2 modes are available. To switch from one mode to the
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other, press the button ``sw0``.
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Distance (onboard sensor)
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-------------------------
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This is the default mode when starting up. In this mode, if the distance to
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the center sensor (soldered on the shield) is lower than 1.25m, then the
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4x7 segment display shows the distance in cm.
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Proximity (onboard + satellites)
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--------------------------------
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In this mode, the 4x7 segment display shows 3 stacked horizontal bars if there
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is something in proximity for each sensor. The left sensor is shown on the
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leftmost digit, then the center sensor, then the right sensor.
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The proximity threshold is configured in
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:kconfig:option:`CONFIG_VL53L0X_PROXIMITY_THRESHOLD`
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To switch from one mode to another, press the button ``sw0``
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Requirements
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************
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This sample communicates over I2C with the X-NUCLEO-53L0A1 shield
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stacked on a board with an Arduino connector. The board's I2C must be
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configured for the I2C Arduino connector (both for pin muxing
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and devicetree). The board must also have a button with the alias ``sw0``
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in its device tree.
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References
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**********
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* `X-NUCLEO-53L0A1 website`_
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Building and Running
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********************
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This sample runs with X-NUCLEO-53L0A1 stacked on any board with a matching
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Arduino connector. For this example, we use a :ref:`nucleo_f429zi_board` board.
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.. zephyr-app-commands::
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:zephyr-app: samples/shields/x_nucleo_53l0a1
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:board: nucleo_f429zi
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:goals: build
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:compact:
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.. _X-NUCLEO-53L0A1 website:
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https://www.st.com/en/evaluation-tools/x-nucleo-53l0a1.html
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