INA3221 3-Channel I2C Current Power Monitor Module

The INA3221 3-Channel I2C Current Power Monitor Module is a high-precision, multi-channel voltage and current sensing breakout board designed for makers, students, and professional engineers. Utilizing the powerful INA3221 chip, this module can monitor both shunt voltage drops and bus supply voltages across three independent channels simultaneously. It is an ideal solution for tracking power consumption, monitoring battery health, and managing power distribution rails in complex electronic systems.

This module communicates via a standard I2C/SMBus-compatible interface, making it highly compatible with popular microcontrollers like Arduino, ESP32, ESP8266, and Raspberry Pi. With onboard 0.1 Ohm (R100) shunt resistors, it can measure high-side currents easily. It also features programmable alert and warning outputs to protect your circuits from over-current or under-voltage conditions, providing a robust layer of hardware-level monitoring for your DIY projects and industrial prototypes.

Features:

• Triple-Channel Monitoring: Independently senses bus voltage and shunt voltage across three separate rails.
• High-Side Sensing: Capable of monitoring voltages from 0V to 26V, independent of the supply voltage.
• I2C Interface: Easy integration with microcontrollers using configurable I2C addresses.
• Onboard Shunt Resistors: Equipped with high-precision 0.1 Ohm (R100) resistors for reliable current measurement.
• Programmable Alerts: Features critical and warning alert outputs for over-limit conditions.
• Wide Operating Range: Operates on a logic supply voltage of 2.7V to 5.5V, drawing minimal current.

Package Includes:

1 x INA3221 3-Channel I2C Current Power Monitor Module