INA219 Bi-Directional DC Current Power Sensor Module I2C

INA219 Bi-Directional DC Current & Power Sensor Module – I2C Interface

The INA219 Bi-Directional DC Current Power Sensor Module is a compact, high-precision solution for monitoring voltage, current, and power in your electronics projects. Compatible with 3V–5.5V systems and featuring an I2C interface, this module is ideal for Arduino, Raspberry Pi, and other microcontroller platforms. Whether you're building a battery monitor, a power supply tester, or a custom energy-logging device, the INA219 delivers accurate, real-time readings you can count on.

Key Features

• Bi-directional current sensing – measures both positive and negative current flow for full circuit insight
• Wide bus voltage range: 0V – 26V
• Supply voltage: 3V – 5.5V (3.3V and 5V logic compatible)
• I2C interface – easy integration with Arduino, Raspberry Pi, ESP32, and more
• Compact SMD package – board size: 26mm × 23mm
• Operating temperature: –40°C to +85°C for reliable performance across environments
• Available in 1-piece or 5-piece packs – stock up for multiple projects
• Condition: Brand new

Specifications

What's in the Box

• 1× or 5× INA219 DC Current Power Sensor Module (select your quantity above)

Perfect For

• DIY electronics makers and hobbyists
• Arduino & Raspberry Pi projects
• Battery management and power monitoring systems
• Robotics and automation builds
• Educational electronics labs

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Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What does the INA219 DC Current Power Sensor Module measure?

A: The INA219 module measures bus voltage (0V–26V), shunt voltage, current (bi-directional), and calculated power via its I2C interface. It can detect both positive and negative current flow, making it ideal for comprehensive power monitoring in DIY electronics projects.

Q: Is the INA219 module compatible with Arduino and Raspberry Pi?

A: Yes! The INA219 module supports I2C communication and operates on 3V–5.5V supply voltage, making it fully compatible with Arduino, Raspberry Pi, ESP32, ESP8266, and most other popular microcontrollers and single-board computers.

Q: How do I connect the INA219 module to my microcontroller?

A: Connect the module's VCC pin to your 3.3V or 5V power rail, GND to ground, SDA to your microcontroller's I2C data line, and SCL to the I2C clock line. Libraries are widely available for Arduino and Python (Raspberry Pi) to get you up and running quickly.

Q: Can I buy multiple units for larger projects?

A: Absolutely. The INA219 module is available in a single-piece (1PCS) option or a value 5-piece (5PCS) pack, perfect for powering multiple monitoring nodes in a single project.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.