A
Anonymous
Apr 04, 2026
Rating: 5/5
High precision
We use these in our educational kits. Students find them easy to work with after initial setup.
Description
MCU-9911 AK09911C Geomagnetic Hall Sensor 3-Axis Compass Magnetometer Module
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface Protocol | I2C |
| Operating Voltage | 1.7V to 3.6V |
| Detection Axes | 3-Axis (X, Y, Z) |
| Package Type | LGA (Land Grid Array) |
| Sensitivity | 0.15 μT/LSB |
| Output Data Rate | 10 Hz to 100 Hz |
| Operating Temperature | -40°C to +85°C |
| Current Consumption | 350 μA (Typical) |
| Physical Dimensions | 2.0 x 2.0 x 1.0 mm |
| Compatible Platforms | Arduino, STM32, ESP32 |
5 reviews
A
Anonymous
Mar 24, 2026
Rating: 5/5
Perfect for flight controllers
Integrated this into my custom drone build. The readings are stable and the I2C communication is flawless.
A
Anonymous
Feb 16, 2026
Rating: 4/5
Solid performance
Works as expected with Raspberry Pi. Just remember it needs 3.3V logic levels.
A
Anonymous
Feb 16, 2026
Rating: 5/5
Compact and powerful
Small footprint makes it easy to hide in projects. Sensitivity is impressive for the size.
A
Anonymous
Feb 09, 2026
Rating: 4/5
Good sensor, tricky setup
The sensor itself works well but requires careful calibration. Good value for the price.
5 FAQ
Q: Can this detect nearby metal objects?
A: It detects magnetic field disturbances caused by metal, but it is designed primarily for geomagnetic sensing.
Q: Does this include a breakout board?
A: This listing is for the raw module. Breakout boards are sold separately.
Q: What library do you recommend for Arduino?
A: We recommend using the Adafruit LSM303 or generic I2C magnetometer libraries.
Q: Is hard iron calibration necessary?
A: Yes, for accurate compass heading, hard and soft iron calibration is recommended.
Q: Is this module 5V tolerant?
A: No, this sensor operates between 1.7V and 3.6V. Using 5V may damage the component.
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