60 lines
1.4 KiB
ReStructuredText
60 lines
1.4 KiB
ReStructuredText
.. zephyr:code-sample:: vcml4040
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:name: VCNL4040 Proximity and Ambient Light Sensor
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:relevant-api: sensor_interface
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Get proximity and ambient light data from a VCNL4040 sensor (polling & trigger mode).
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Overview
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********
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This sample periodically measures proximity and light for
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5 sec in the interval of 300msec in polling mode. Then threshold trigger mode
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is enabled with the high threshold value of 127 and data is fetched based
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on interrupt. The result is displayed on the console.
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Requirements
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************
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This sample uses the VCNL4040 sensor controlled using the I2C interface.
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Connect sensor INT for interrupt to Feather D5 pin on the Adafruit STM32F405 Feather.
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References
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**********
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- VCNL4040: https://www.vishay.com/docs/84274/vcnl4040.pdf
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Building and Running
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********************
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This project outputs sensor data to the console. It requires a VCNL4040
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sensor to be connected to the desired board.
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.. zephyr-app-commands::
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:zephyr-app: samples/sensor/vcnl4040/
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:goals: build flash
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Sample Output
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=============
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.. code-block:: console
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get device vcnl4040
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Testing the polling mode.
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Proximity: 31
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Light (lux): 288
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<repeats for 5sec every 300ms>
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Polling mode test finished.
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Testing the trigger mode.
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Testing proximity trigger.
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...
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Triggered.
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Proximity: 122
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<repeats whenever triggered for 5sec>
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Threshold trigger test finished.
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Trigger mode test finished.
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