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https://github.com/zephyrproject-rtos/zephyr
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4253eae005
The nRF52840 DK board target, so far known as nrf52840_pca10056, is renamed to nrf52840dk_nrf52840. Its documentation and all references to its name in the tree are updated accordingly. Overlay and configuration files specific to this board are also renamed, to match the new board name. Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
47 lines
1.3 KiB
ReStructuredText
47 lines
1.3 KiB
ReStructuredText
.. _bmm150:
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BMM150 Geomagnetic Sensor
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#########################
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Overview
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********
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This sample application periodically reads magnetometer (X, Y, Z) data from
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the first available device that implements SENSOR_CHAN_MAGN_* (predefined array
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of device names). This sample checks the sensor in polling mode (without
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interrupt trigger).
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Building and Running
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********************
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This sample application uses an BMM150 sensor connected to a board via I2C.
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Sensor has multiple pins so you need to connect according to connection diagram given in
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`bmm150 datasheet`_ at page 41.
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.. code-block:: console
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.. zephyr-app-commands::
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:zephyr-app: samples/sensor/bmm150
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:board: nrf52840dk_nrf52840
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:goals: flash
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:compact:
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Sample Output
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=============
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To check output of this sample , any serial console program can be used.
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Here I am using picocom program to open output. Check which tty device it is.
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In my case it is ttyACM0
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.. code-block:: console
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$ sudo picocom -D /dev/ttyACM0
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.. code-block:: console
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( x y z ) = ( -0.390625 0.087500 -0.390625 )
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( x y z ) = ( -0.275000 0.115625 -0.275000 )
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( x y z ) = ( -0.281250 0.125000 -0.281250 )
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( x y z ) = ( -0.287500 0.134375 -0.287500 )
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.. _bmm150 datasheet: http://www.mouser.com/ds/2/783/BST-BMM150-DS001-01-786480.pdf
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