boards/shields/adafruit_ina237/doc/index.rst
.. _adafruit_ina237:
Adafruit INA237 Shield ######################
Overview
The Adafruit INA237 DC Current Voltage Power Monitor Sensor Shield_ features
a TI INA237 current sensor_ and two STEMMA QT connectors.
It measures current and bus voltage.
.. figure:: adafruit_ina237.webp :align: center :alt: Adafruit INA237 Shield
Adafruit INA237 Shield (Credit: Adafruit)
Requirements
This shield can be used with boards which provide an I2C connector, for
example STEMMA QT or Qwiic connectors.
The target board must define a zephyr_i2c node label.
See :ref:shields for more details.
+--------------+-------------------+ | Shield Pin | Function | +==============+===================+ | SDA | INA237 I2C SDA | +--------------+-------------------+ | SCL | INA237 I2C SCL | +--------------+-------------------+ | ALRT | INA237 ALERT out | +--------------+-------------------+
See :dtcompatible:ti,ina237 for documentation on how to adjust the
devicetree file, for example to adjust the sample averaging.
Programming
Set --shield adafruit_ina237 when you invoke west build. For example
when running the :zephyr:code-sample:sensor_shell sample:
.. zephyr-app-commands:: :zephyr-app: samples/sensor/sensor_shell :board: adafruit_qt_py_rp2040 :shield: adafruit_ina237 :goals: build
.. _Adafruit INA237 DC Current Voltage Power Monitor Sensor Shield: https://learn.adafruit.com/adafruit-ina237-dc-current-voltage-power-monitor
.. _TI INA237 Current sensor: https://www.ti.com/product/INA237