zephyr

History

Torsten Rasmussen 407b49b35c cmake: use find_package to locate Zephyr Using find_package to locate Zephyr. Old behavior was to use $ENV{ZEPHYR_BASE} for inclusion of boiler plate code. Whenever an automatic run of CMake happend by the build system / IDE then it was required that ZEPHYR_BASE was defined. Using ZEPHYR_BASE only to locate the Zephyr package allows CMake to cache the base variable and thus allowing subsequent invocation even if ZEPHYR_BASE is not set in the environment. It also removes the risk of strange build results if a user switchs between different Zephyr based project folders and forgetting to reset ZEPHYR_BASE before running ninja / make. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>		2020-03-27 16:23:46 +01:00
..
src
CMakeLists.txt	cmake: use find_package to locate Zephyr	2020-03-27 16:23:46 +01:00
nrf52840dk_nrf52840.overlay	boards: nrf52840_pca10056: Rename board to nrf52840dk_nrf52840	2020-03-27 09:14:08 +01:00
prj.conf
README.rst	boards: nrf52840_pca10056: Rename board to nrf52840dk_nrf52840	2020-03-27 09:14:08 +01:00
sample.yaml	boards: nrf52840_pca10056: Rename board to nrf52840dk_nrf52840	2020-03-27 09:14:08 +01:00

README.rst

.. _ms5837-sample:

MS5837 Sensor Sample
####################

Overview
********

This sample application retrieves the pressure and temperature from a MS5837
sensor every 10 seconds, and prints this information to the UART console.

Requirements
************

- `nRF52840 Preview development kit`_
- MS5837 sensor

Wiring
******

The nrf52840 Preview development kit should be connected as follows to the
MS5837 sensor.

+-------------+----------+
| | nrf52840  | | MS5837 |
| | Pin       | | Pin    |
+=============+==========+
| P0.3        | SCL      |
+-------------+----------+
| P0.31       | SDA      |
+-------------+----------+

Building and Running
********************

Build this sample using the following commands:

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/ms5837
   :board: nrf52840dk_nrf52840
   :goals: build
   :compact:

See :ref:`nrf52840dk_nrf52840` on how to flash the build.

References
**********

.. target-notes::

.. _MS5837 Sensor: http://www.te.com/usa-en/product-CAT-BLPS0017.html?q=&type=products&samples=N&q2=ms5837
.. _nRF52840 Preview development kit: http://www.nordicsemi.com/eng/Products/nRF52840-Preview-DK