Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Chip Model	INA219
Interface Type	I2C
Measurement Type	Bidirectional Current and Power
Bus Voltage Range	0V to 26V
Max Shunt Voltage	±320mV
Current Resolution	Up to 10µA
Operating Voltage	3.3V or 5V
Shunt Resistor	0.1 Ohm, 1% Tolerance
Address Pins	A0, A1 (Configurable)
Board Dimensions	20mm x 15mm

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Accurate and reliable

Zero-drift claim seems accurate based on my long-term tests. The data remains consistent over hours of operation. Great addition to any electronics workbench.

Anonymous

Mar 29, 2026

Rating: 5/5

Essential for robotics power management

I use these on all my robot controllers now. Being able to monitor both voltage and current bidirectionally helps me understand motor load efficiently. Highly recommended.

Anonymous

Mar 26, 2026

Rating: 5/5

Perfect for battery monitoring projects

This module works flawlessly with my Arduino setup. The I2C communication is stable, and the library support is excellent. Measuring current draw on my solar project has never been easier.

Anonymous

Mar 23, 2026

Rating: 4/5

Great value, minor soldering needed

The sensor is accurate and easy to integrate. I had to solder my own headers, but that is expected for this price point. Readings match my multimeter very closely.

Anonymous

Mar 07, 2026

Rating: 4/5

Good documentation support

Found plenty of examples online to get started quickly. The only reason for 4 stars is that the default address conflicted with another device, but changing it via jumpers was simple.

Anonymous

Mar 05, 2026

Rating: 5/5

Compact and powerful

Small form factor fits perfectly in my enclosure. It handles the 24V system without breaking a sweat. Very happy with this purchase for my off-grid monitoring system.

5 FAQ

Q: Is a library available for ESP32?

A: Absolutely. There are several open-source libraries compatible with ESP32, Arduino IDE, and PlatformIO that support the INA219 chip.

Q: Can this module measure negative current flow?

A: Yes, the INA219 supports bidirectional current monitoring, allowing it to measure both charging and discharging currents effectively.

Q: What is the maximum bus voltage this can handle?

A: The module is rated for bus voltages up to 26V. Please ensure your system stays within this limit to avoid damaging the sensor.

Q: How do I change the I2C address?

A: You can change the I2C address by soldering bridges to the A0 and A1 pads on the back of the module. Refer to the datasheet for the address table.

Q: Does this come with header pins pre-soldered?

A: No, this module is typically shipped without pre-soldered headers to allow flexibility for breadboard use or direct wire soldering depending on your project needs.

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