A
Anonymous
Mar 10, 2026
Rating: 5/5
Solid Module
Compact and reliable. I've bought three of these for different robots. No issues so far.
Description
Power monitoring sensor module
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface Protocol | I²C (I2C) |
| Supply Voltage | 3.3V or 5V DC |
| Bus Voltage Range | 0V to 26V |
| Max Current Sense | ±3.2A (default) |
| Shunt Resistor Value | 0.1 Ohm 1% |
| Measurement Accuracy | 1% Typical |
| Operating Temperature | -40°C to +85°C |
| PCB Dimensions | 25mm x 20mm |
| Weight | 3.5 grams |
| Compatibility | Arduino, Raspberry Pi, ESP32 |
5 reviews
A
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for Battery Projects
Used this to monitor a 12V LiPo setup. Readings are stable and the library is easy to use.
A
Anonymous
Feb 28, 2026
Rating: 5/5
Accurate Power Monitoring
Comparing against a multimeter, the values are very close. Great for solar charge controller logging.
A
Anonymous
Feb 25, 2026
Rating: 3/5
Documentation lacking
The hardware is fine, but I had to search online for example code. Works after some troubleshooting.
A
Anonymous
Feb 14, 2026
Rating: 4/5
Good but needs care
Works well once wired correctly. Make sure to check the shunt resistor orientation.
5 FAQ
Q: Can I measure more than 3.2A?
A: Yes, by replacing the shunt resistor with a lower value.
Q: Is this 3.3V or 5V logic?
A: It supports both 3.3V and 5V logic levels.
Q: Can I connect multiple sensors?
A: Yes, you can change the I2C address using the solder jumpers.
Q: Is there an Arduino library?
A: Yes, several popular libraries are available online for free.
Q: Is it waterproof?
A: No, the PCB is not coated. Please enclose it for outdoor use.
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