Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Interface Protocol | I2C (Inter-Integrated Circuit) |
| Measurement Type | Bidirectional Current and Power |
| Supply Voltage Range | 3.0V to 5.5V |
| Bus Voltage Range | 0V to 26V |
| Current Sense Range | +/- 3.2A (with default shunt) |
| Shunt Resistor Value | 0.1 Ohm, 1% Tolerance |
| ADC Resolution | 12-bit configurable |
| Operating Temperature | -40°C to +85°C |
| Board Dimensions | 20mm x 15mm |
| Compatibility | Arduino, Raspberry Pi, ESP32 |
Anonymous
Mar 28, 2026
Rating: 5/5
Easy integration with ESP32
Connected easily to my ESP32 via I2C. The zero-drift feature really helps when measuring low currents over long periods. Highly recommend for anyone building power monitors.
Anonymous
Mar 28, 2026
Rating: 5/5
Compact and accurate
Small footprint fits perfectly inside my custom drone frame. The precision is sufficient for monitoring battery discharge rates during flight tests without adding significant weight.
Anonymous
Mar 18, 2026
Rating: 5/5
Perfect for battery monitoring projects
This sensor module works flawlessly with my Arduino Uno. The library support is excellent, and reading bidirectional current was straightforward. Great accuracy for the price point.
Anonymous
Mar 16, 2026
Rating: 4/5
Solid performance for education
We bought ten of these for our student workshops. They are robust enough to handle beginner mistakes and provide clear data for learning about electrical parameters.
Anonymous
Mar 14, 2026
Rating: 4/5
Good value, minor soldering needed
The module functions exactly as described. I had to solder my own headers since they weren't pre-attached, but that's standard for these boards. Readings are stable and consistent.
Anonymous
Mar 10, 2026
Rating: 5/5
Ideal for solar charge controller logging
I am using this to monitor current flow in a small off-grid solar setup. The ability to handle up to 26V bus voltage makes it very versatile. Data logging has been reliable for weeks.
Q: Does this come with header pins pre-soldered?
A: No, the module typically ships without pre-soldered headers to allow flexibility for breadboard use or direct wire soldering based on your project needs.
Q: Can this module measure negative current flow?
A: Yes, the INA219 is designed for bidirectional current monitoring, allowing it to measure both charging and discharging currents effectively.
Q: What is the maximum bus voltage this can handle safely?
A: The module supports a bus voltage range from 0V up to 26V. Exceeding 26V may damage the sensor.
Q: Can I change the measurement range for higher currents?
A: Yes, by replacing the onboard 0.1 Ohm shunt resistor with a lower value resistor, you can increase the measurable current range, though this requires calibration in your code.
Q: Is there a specific library required for Arduino?
A: While you can write your own driver, the popular Adafruit INA219 library is widely used, well-documented, and fully compatible with this module.
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