zephyr

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Torsten Rasmussen 1cccc8a8fe cmake: increase minimal required version to 3.20.0 Move to CMake 3.20.0. At the Toolchain WG it was decided to move to CMake 3.20.0. The main reason for increasing CMake version is better toolchain support. Better toolchain support is added in the following CMake versions: - armclang, CMake 3.15 - Intel oneAPI, CMake 3.20 - IAR, CMake 3.15 and 3.20 Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>		2021-08-20 09:47:34 +02:00
..
src
app.overlay
CMakeLists.txt	cmake: increase minimal required version to 3.20.0	2021-08-20 09:47:34 +02:00
prj.conf
README.rst
sample.yaml

README.rst

.. _max17262:

MAX17262 Fuel Gauge Sensor
###################################

Overview
********

This sample application periodically reads voltage, current and temperature
data from the MAX17262 device that implements SENSOR_CHAN_GAUGE_VOLTAGE,
SENSOR_CHAN_GAUGE_AVG_CURRENT, and SENSOR_CHAN_GAUGE_TEMP.

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

The MAX17262 is an ultra-low power fuel-gauge IC which implements the Maxim
ModelGauge m5 algorithm. The IC monitors a single-cell battery pack and
supports internal current sensing for up to 3.1A pulse current. The IC
provides best performance for batteries with 100mAhr to 6Ahr capacity.

This sample requires a board which provides a configuration for Arduino
connectors and defines node aliases for the I2C interface.
For more info about the node structure see
:zephyr_file:`samples/sensor/max17262/app.overlay`

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

This sample application uses an MAX17262 sensor connected to a board via I2C.
Connect the sensor pins according to the connection diagram given in the
`max17262 datasheet`_.

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/max17262
   :board: nrf52840dk_nrf52840
   :goals: build flash
   :compact:

Sample Output
=============
To check output of this sample , any serial console program can be used.
This example uses ``picocom`` on the serial port ``/dev/ttyUSB0``:

.. code-block:: console

        $ sudo picocom -D /dev/ttyUSB0

.. code-block:: console

        V: 3.626406 V; I: -3.437500 mA; T: 28.011718 °C
        V: 3.626406 V; I: -3.437500 mA; T: 28.011718 °C
        V: 3.626406 V; I: -3.437500 mA; T: 28.011718 °C

References
***********

.. _max17262 datasheet: https://datasheets.maximintegrated.com/en/ds/MAX17262.pdf