A
Anonymous
Apr 12, 2026
Rating: 5/5
Reliable module
Been running this continuously for weeks monitoring a 12V system. No drift or issues so far.
Description
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Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface Type | I²C / SMBus |
| Supply Voltage | 3.3V or 5V DC |
| Bus Voltage Range | 0V to 26V |
| Current Sensing Range | ±3.2A (Default Shunt) |
| Shunt Resistor Value | 0.1 Ohm 1% |
| Measurement Accuracy | 0.5% Typical |
| Operating Temperature | -40°C to +85°C |
| PCB Dimensions | 25 x 20 mm |
| Module Weight | 5 grams |
| Microcontroller Compatibility | Arduino, Raspberry Pi, ESP32 |
5 reviews
A
Anonymous
Feb 27, 2026
Rating: 5/5
Precise measurements
Compared the output against my multimeter and it was spot on. Excellent value for the price.
A
Anonymous
Jan 28, 2026
Rating: 5/5
Library works well
The Adafruit library supports this module perfectly. Got it up and running in minutes.
A
Anonymous
Jan 22, 2026
Rating: 4/5
Good but small pins
Works well but the header pins are close together. Make sure you have a steady hand for soldering.
A
Anonymous
Jan 19, 2026
Rating: 5/5
Great for power logging
Used this for a solar battery project. The readings are consistent and the I2C interface makes wiring very simple.
5 FAQ
Q: Do I need to install a specific library?
A: While you can write your own driver, we recommend using the Adafruit INA219 library for ease of use.
Q: What is the maximum bus voltage?
A: The maximum bus voltage rating is 26V. Do not exceed this limit to avoid damaging the sensor.
Q: Is this compatible with 5V Arduino boards?
A: Yes, the module supports 3.3V and 5V logic levels, so it works perfectly with standard Arduino boards.
Q: How do I change the I2C address?
A: You can change the address by soldering the address selection jumpers on the back of the PCB.
Q: Can this measure AC current?
A: No, the INA219 is designed for DC current and power monitoring only.
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