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.

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 Shields for more details.

Pin Assignments

Shield Pin	Function
SDA	INA237 I2C SDA
SCL	INA237 I2C SCL
ALRT	INA237 ALERT out

See 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 Sensor shell sample:

# From the root of the zephyr repository
west build -b adafruit_qt_py_rp2040 --shield adafruit_ina237 samples/sensor/sensor_shell