CJMCU-3221 INA3221 Triple Channel Current Voltage Power Monitor Module (I2C High Side Low Side Monitor)

The CJMCU-3221 INA3221 Current Voltage Power Monitor Module is a three-channel power monitoring module designed to measure bus voltage, shunt voltage, and current across three independent power rails. It is based on the INA3221 precision current and power monitor IC and supports both high-side and low-side current sensing.

The module communicates with a host microcontroller through an I2C interface, allowing multiple power rails to be monitored digitally without requiring separate analog measurement circuits. It is suitable for battery monitoring, power management, energy measurement, and embedded system applications.

Key Features -

• Based on INA3221 precision current and power monitor IC

• Three independent current monitoring channels

• Supports high-side and low-side current sensing

• Measures bus voltage and shunt voltage

• Digital I2C communication interface

• Suitable for voltage, current and power monitoring

• Compact module design

• Suitable for battery monitoring systems

• Compatible with Arduino, ESP32 and Raspberry Pi platforms

Specifications -

• Product Type: Triple Channel Current Voltage Power Monitor

• Module Model: CJMCU-3221

• Monitor IC: INA3221

• Number of Channels: 3

• Measurement Type: Current, Voltage and Power Monitoring

• Current Sensing: High Side and Low Side

• Communication Interface: I2C

• Operating Voltage: 3.3V to 5V DC

• Output Interface: Digital I2C Data

• Application: Power Management and Battery Monitoring

• Additional Features: Three-channel monitoring, digital measurement and independent power rail monitoring

Applications -

• Battery monitoring

• Power supply monitoring

• Energy measurement

• Embedded power management

• Solar power monitoring

• Portable electronics

• IoT power monitoring

• Robotics power management

• Multi-rail power monitoring

• Arduino projects

• ESP32 projects

• Raspberry Pi projects