.. zephyr:code-sample:: max17262
:name: MAX17262 Fuel Gauge Sensor
:relevant-api: sensor_interface
Get voltage, current and temperature data from a MAX17262 sensor (polling mode).
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
**********
.. target-notes::
.. _max17262 datasheet: https://datasheets.maximintegrated.com/en/ds/MAX17262.pdf
fa0b17e4b1