TENSTAR 2pcs INA226 IIC I2C Interface Bi-Directional Current/Power Monitoring Sensor Module CJMCU-226 INA226AIDGSR Chip

Product Overview

The TENSTAR INA226 IIC I2C Interface Bi‑Directional Current/Power Monitoring Sensor Module (model CJMCU‑226, chip INA226AIDGSR) delivers precise, real‑time measurements of voltage, current, and power for any DC load up to 36 V. Packaged as a convenient 2‑piece kit, these compact breakout boards are perfect for hobbyists, engineers, and makers who need reliable power‑management data in their projects.

Key Highlights

• 🔧 Bi‑directional measurement – accurately detects both charge and discharge currents.
• 📈 High resolution – 0.1 mV voltage, 0.1 mA current, and 0.1 mW power steps.
• ⚡ Wide voltage range – supports shunt voltages up to ±81 mV and bus voltages from 0 V to 36 V.
• 🔗 I²C compatible – simple two‑wire interface (SCL/SDA) works with Arduino, Raspberry Pi, ESP32, STM32, and more.
• 🛡️ Integrated calibration – programmable calibration register for custom shunt resistors.
• 💡 Low‑power operation – standby mode draws < 10 µA, ideal for battery‑powered designs.
• 📦 2‑piece kit – includes two CJMCU‑226 modules, each with a 0.1 Ω 0.5 W shunt resistor.

Technical Specifications

• Chip: INA226AIDGSR
• Supply Voltage: 2.7 V – 5.5 V (3.3 V or 5 V recommended)
• Shunt Resistor: 0.1 Ω ± 1 %
• Maximum Shunt Voltage: ±81 mV
• Bus Voltage Range: 0 V – 36 V
• Current Resolution: 0.1 mA (with 0.1 Ω shunt)
• Power Resolution: 0.1 mW
• I²C Address: 0x40 (adjustable via ADDR pin)
• Operating Temperature: –40 °C to 125 °C
• Dimensions: 20 mm × 15 mm × 2 mm (per module)

Compatibility & Integration

The CJMCU‑226 board is designed for plug‑and‑play integration. Its 0.1 mm pitch header fits standard breadboards and perf‑boards. Use the provided Arduino library or the official Adafruit INA219/INA226 examples as a starting point – the same code works with the TENSTAR module.

• Arduino (UNO, Mega, Nano, etc.)
• Raspberry Pi (Python SMBus)
• ESP32 / ESP8266 (Arduino core or MicroPython)
• STM32, NXP, TI microcontrollers (HAL/I2C drivers)
• Industrial PLCs with I²C gateway modules

Why Choose TENSTAR?

TENSTAR is known for delivering high‑quality sensor modules at a price that fits any budget. Each INA226 board undergoes rigorous testing for accuracy and reliability, ensuring your power‑monitoring data is trustworthy. With a 2‑year limited warranty and responsive technical support, you can focus on innovation, not troubleshooting.

Typical Applications

• Battery management systems (BMS)
• Solar panel and renewable‑energy monitoring
• Power‑supply efficiency testing
• IoT device power profiling
• Motor driver current feedback
• Educational labs and prototype development

Package Contents

• 2 × CJMCU‑226 INA226 sensor modules (with built‑in 0.1 Ω shunt)
• 2 × M3 × 6 mm mounting screws
• Quick‑start guide with wiring diagram

Order Now

Upgrade your project with precise power monitoring. Click Add to Cart to get the TENSTAR 2‑pcs INA226 I2C sensor module and start measuring with confidence today!