INA226-1A Current Voltage Power Monitor Unit

The M5Stack Unit INA226-1A is a compact, isolated module for measuring DC voltages up to 30V and currents up to 1A. It reads voltage, current, and power at the same time over I2C, working with a range of main control boards. Built-in power and signal isolation keeps the measurement and control sides safe, while a self-resetting fuse protects against overcurrent. It’s a solid choice for power management, battery monitoring, or industrial safety projects.

The M5Stack Unit INA226-1A is a fully isolated high-precision current, voltage, and power measurement unit, suitable for scenarios measuring DC 0 ~ 30V voltage and up to 1A current, supporting simultaneous voltage and current measurements. Users can read key parameters such as current, voltage, and power obtained by this unit via the I2C communication interface, supporting multiple main control platforms. It also integrates an isolated power module and I2C signal isolator, achieving complete electrical isolation between the measurement end and the main control end, and features a self-resetting fuse that can automatically blow when the current range is exceeded, effectively ensuring the safety of equipment and personnel, improving system anti-interference ability, and is suitable for a variety of electrical parameter acquisition application scenarios such as power management, battery monitoring, and industrial safety.

Features

* Integrated 16-bit high-precision ADC

* Current, voltage, and power integrated measurement

* ±1A range, bidirectional current

* Wide voltage input (DC 0 ~ 30V)

* I2C communication interface

* Power and signal isolation

* Development Platform:

* Arduino

* UiFlow2

Specification

Specification Parameter

Power Detection IC INA226, high-precision, bidirectional current / power monitoring IC

Voltage Detection Range DC 0 ~ 30V

Current Detection Range ±1A (bidirectional current measurement)

Communication Interface I2C @0x41

Operating Current DC 5.01V@16.55mA

Product Size 58.0 x 24.0 x 10.2mm

Product Weight 8.5g

Resources

* Documentation

Package Contents

* 1 x Unit INA226-1A

* 1 x HY2.0-4P Grove Cable (20cm)

* 1 x VH3.96-4P Terminal