Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface Type | I²C (2-Wire) |
| Supply Voltage | 3.3V to 5V DC |
| Bus Voltage Range | 0V to 26V DC |
| Shunt Voltage Range | ±320mV |
| Max Current (Default) | 3.2A |
| Shunt Resistor | 0.1 Ohm 1% |
| I2C Addresses | 4 Configurable |
| Accuracy | 0.5% Typical |
| PCB Dimensions | 20mm x 15mm |
| Weight | 4.5g |
Anonymous
Mar 29, 2026
Rating: 4/5
Good value sensor
Works well for monitoring battery drain. Only downside is headers were not included in the pack.
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable Readings
Stable data over long periods. Great for logging power consumption in embedded systems.
Anonymous
Feb 25, 2026
Rating: 5/5
Arduino Compatible
Used with Uno, library worked instantly. Readings match my multimeter closely.
Anonymous
Feb 20, 2026
Rating: 4/5
Compact Size
Fits easily in small enclosures. Wish the screw terminals were a bit larger for thicker wires.
Anonymous
Jan 27, 2026
Rating: 5/5
Perfect for Solar Project
Measured my panel output accurately. Easy to wire up with my ESP32 and the data is stable.
Q: Does this sensor measure AC current?
A: No, the INA219 is designed specifically for DC current and voltage monitoring only.
Q: Is there a library available for ESP32?
A: Yes, the popular Adafruit INA219 library supports ESP32 boards out of the box.
Q: Does this support 5V logic levels?
A: Yes, the module includes a regulator and is compatible with 3.3V and 5V logic systems.
Q: Can I measure currents higher than 3.2A?
A: Yes, but you need to replace the default shunt resistor with a lower value and recalibrate.
Q: Can I connect multiple sensors on one bus?
A: Yes, up to 4 modules can be connected by configuring the address select pins differently.
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