Description Adafruit INA3221 Power Monitor

Introducing the Adafruit INA3221. It's the solution for monitoring multiple power rails at once. This breakout board uses the clever INA3221 chip to measure voltage and current from up to three power sources. With ±1% accuracy, you can measure both the high side of the voltage and the DC current draw via I2C. This makes it ideal for complex projects that use multiple power sources. Many current meters only measure on the low side. This can cause circuits to malfunction due to drift in the ground reference. The INA3221 solves this problem. It can take both high and low side measurements up to +26VDC. Even when running at 3 or 5V itself. The built-in precision amplifier measures voltage across 0.05 ohm, 1% precision resistors. This allows you to measure currents up to ±3.2 Amps with 0.4mA resolution. Simply connect the sensor to a 3-5V supply and connect the I2C pins to your microcontroller. Thanks to STEMMA QT connectors, there’s no soldering required. Simply connect the INA3221 to your favorite microcontroller via a QT cable (not included). Or use the included 0.1” pin header for breadboard connections. Arduino and CircuitPython libraries are available for easy integration into projects.