# Current and power monitor sensor, INA226, I2C, IIC, Bidirectional, 16Bit, 2.7-5.5V

> INA226 sensor module for current and power monitoring, I2C/SMBus interface, compatible with Arduino and other boards. Measures bidirectionally (high-side/low-side) current, voltage and power, 16-bit resolution. Monitored bus voltage 0-36VDC, supply 2.7-5.5VDC. Up to 16 I2C addresses, maximum gain error 0.1%, maximum offset 10uV. Pins: VBUS, SDA/SCL, ALERT, A0/A1, IN+/IN-.

- Page: https://sigmanortec.ro/en/current-and-power-monitor-sensor-ina226-i2c-iic-bidirectional-16bit-27-55v
- Price: 15.58 RON
- Availability: In stock; 1-2 zile
- Reference: 9713 · EAN: 5940919401893
- Category: Mechatronics and IoT > Sensors and Modules > Voltage and Current Sensors
- Specifications: Supply Voltage: 2.7; Maximum Input Voltage: 5.5; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.004 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:33 (Europe/Bucharest)

## Description

Module for precise current and power monitoring in Arduino projects and other boards, measures bidirectionally on high-side or low-side, reads current, voltage and power via I2C/SMBus, supports 0-36V bus voltage independent of 2.7-5.5V supply, 16 bit resolution with calibration, averaging and programmable alert, up to 16 I2C addresses.
The INA226 module, compatible with Arduino and other development boards, is a current and power monitor that includes a shunt for voltage measurement and an I2C or SMBUS compatible interface. This device monitors both the voltage drop across the shunt and the bus supply voltage. Programmable calibration value, conversion times and averaging options, combined with an internal multiplier, allow direct reading of current in amps and power in watts.
The INA226 module senses current on common bus voltages that can range from 0 V to 36 V, independent of supply voltage. The device operates from a single 2.7 V to 5.5 V supply, consuming 330 μA of supply current typically. The device is specified for an operating temperature range of -40°C to 125°C and offers up to 16 programmable addresses over the I2C-compatible interface.
Specifications:
Supply voltage: 2.7 - 5.5VDC
Bus Voltage Monitoring: 0 - 36VDC
Sensitivity: Both on the upper side (High-Side) and on the lower side (Low-Side)
Reporting: Current, voltage and power
Measured current: 0.8A (with resistor R100)
Gain error: maximum 0.1%
Maximum offset: 10 μV
Mediation Options: Configurable
Programmable Addresses: 16
Description of the Pines:
VBUS : Bus voltage input
SDA/SCL : Data and clock lines for the IIC bus
ALERT : Multifunctional alarm output
A0/A1 : IIC address lines
IN+/IN- : Non-inverting analog input, inverting analog input
Scheme: