Adafruit INA219 Shield

Overview

The Adafruit INA219 High Side DC Current Sensor Shield features a TI INA219 current sensor and two STEMMA QT connectors. It measures current and bus voltage.

Adafruit INA219 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	INA219 I2C SDA
SCL	INA219 I2C SCL
VIN-	Current sense neg
VIN+	Current sense pos

See ti,ina219 for documentation on how to adjust the devicetree file, for example to adjust the gain.

Programming

Set --shield adafruit_ina219 when you invoke west build. For example when running the INA219 Bidirectional Power/Current Monitor sample:

# From the root of the zephyr repository
west build -b adafruit_qt_py_rp2040 --shield adafruit_ina219 samples/sensor/ina219