| .. _bmm150: |
| |
| BMM150 Geomagnetic Sensor |
| ######################### |
| |
| Overview |
| ******** |
| |
| This sample application periodically reads magnetometer (X, Y, Z) data from |
| the first available device that implements SENSOR_CHAN_MAGN_* (predefined array |
| of device names). This sample checks the sensor in polling mode (without |
| interrupt trigger). |
| |
| Building and Running |
| ******************** |
| |
| This sample application uses an BMM150 sensor connected to a board via I2C. |
| Sensor has multiple pins so you need to connect according to connection diagram given in |
| `bmm150 datasheet`_ at page 41. |
| |
| .. code-block:: console |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/sensor/bmm150 |
| :board: nrf52840dk_nrf52840 |
| :goals: flash |
| :compact: |
| |
| Sample Output |
| ============= |
| To check output of this sample , any serial console program can be used. |
| Here I am using picocom program to open output. Check which tty device it is. |
| In my case it is ttyACM0 |
| |
| .. code-block:: console |
| |
| $ sudo picocom -D /dev/ttyACM0 |
| |
| .. code-block:: console |
| |
| ( x y z ) = ( -0.390625 0.087500 -0.390625 ) |
| ( x y z ) = ( -0.275000 0.115625 -0.275000 ) |
| ( x y z ) = ( -0.281250 0.125000 -0.281250 ) |
| ( x y z ) = ( -0.287500 0.134375 -0.287500 ) |
| |
| .. _bmm150 datasheet: http://www.mouser.com/ds/2/783/BST-BMM150-DS001-01-786480.pdf |
