95 lines
2.5 KiB
ReStructuredText
95 lines
2.5 KiB
ReStructuredText
.. _ArgonKey_Sensors:
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ArgonKey Board Sensors
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######################
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Overview
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********
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This sample provides an example of how to read sensor data
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from the ArgonKey board. The result is displayed on the console.
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It makes use of both the trigger and poll methods.
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Requirements
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************
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This sample just requires the ArgonKey board. The board can be powered
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in either one of the following two ways:
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- mezzanine mode, plugging the ArgonKey to HiKey board through its 96Board
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low-speed connector
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- standalone mode, supplying 5V directly on P1 connector
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The user may select or unselect the sensors from
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:zephyr_file:`samples/boards/96b_argonkey/sensors/prj.conf`.
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Please note that all sensor related code is conditionally compiled
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using the ``#ifdef`` directive, so this sample is supposed to always
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build correctly. Example:
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.. code-block:: c
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#ifdef CONFIG_HTS221
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struct device *hum_dev = DEVICE_DT_GET_ONE(st_hts221);
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if (!device_is_ready(hum_dev)) {
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printk("%s: device not ready.\n", hum_dev->name);
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return;
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}
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#endif
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References
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**********
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- :ref:`96b_argonkey`
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Building and Running
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********************
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.. zephyr-app-commands::
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:zephyr-app: samples/boards/96b_argonkey/sensors
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:host-os: unix
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:board: 96b_argonkey
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:goals: run
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:compact:
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Sample Output
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=============
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A USB to TTL 1V8 serial cable may be attached to the low speed connector on
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the back of the board on P3.5 (TX) and P3.7 (RX). User may use a simple
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terminal emulator, such as minicom, to capture the output.
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.. code-block:: console
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proxy: 1 ;
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distance: 0 m -- 09 cm;
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temp: 30.35 C; press: 97.466259
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humidity: 43.500000
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accel (0.004000 -0.540000 9.757000) m/s2
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gyro (0.065000 -0.029000 -0.001000) dps
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magn (0.049500 0.208500 -0.544500) gauss
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- (6) (trig_cnt: 1878)
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<repeats endlessly every 2s>
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In this example the output is generated polling the sensor every 2 seconds.
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Sensor data is printed in the following order (no data is printed for
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sensors that are not enabled):
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#. *VL53L0x* proximity
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#. *LPS22HB* baro/temp
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#. *HTS221* humidity
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#. *LSM6DSL* accel
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#. *LSM6DSL* gyro
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#. *LIS2MDL* magnetometer (attached to *LSM6DSL*)
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The proximity sensor displays two lines:
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- a flag (proxy) that goes on when the distance is below 10cm
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- the absolute distance from the obstacle
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The last line displays a counter of how many trigger interrupts
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has been received. It is possible to display the sensor data
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read for each trigger by enabling the **ARGONKEY_TEST_LOG** macro.
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