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Home / Sensors / MCU-9911 AK09911C Geomagnetic Hall Sensor Three-Axis Compass Magnetometer Module

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Sensors
Origin -
Model Number MCU-9911 AK09911C
Sensor Type Three-Axis Geomagnetic Hall Sensor
Interface I2C / SPI Compatible
Operating Voltage 1.7V to 3.6V
Measurement Range ±4900 µT
Output Resolution 16-bit
Package Type LGA-12 Module
Operating Temperature -40°C to +85°C
Application Electronic Compass, Navigation, Motion Tracking
Dimensions 2.5mm x 2.5mm x 0.9mm

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 4/5

Solid sensor for the money

Good sensitivity and response time. It handles magnetic interference better than some cheaper alternatives I've tried. Would recommend adding a protective case if using in rough environments.

A

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect for drone navigation projects

This sensor module is incredibly accurate. I integrated it into my custom drone flight controller, and the heading data is stable even during rapid movements. The I2C communication was easy to set up with my microcontroller.

A

Anonymous

Mar 16, 2026

Rating: 5/5

Easy to integrate

The documentation provided by the manufacturer is clear. I had it reading data within an hour of unboxing. The form factor is small enough to fit into tight enclosures without issues.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Excellent precision

The 16-bit output resolution provides very smooth data curves. Ideal for applications requiring fine angular detection. Shipping was fast and the module arrived well-packaged.

A

Anonymous

Mar 02, 2026

Rating: 4/5

Great value, minor calibration needed

Works as advertised. Out of the box, it required some soft-iron and hard-iron calibration to get precise readings, but that is expected for magnetometers. Once calibrated, it performs excellently for the price point.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Reliable industrial grade performance

We used these in a batch of educational robotics kits. They have shown consistent performance across different units. The low power consumption is a huge plus for battery-operated devices.

5 FAQ

Q: Is there a library available for Arduino?

A: Yes, there are several open-source libraries compatible with the AK09911C sensor available on GitHub and the Arduino Library Manager that support this module.

Q: Does this module come with a breakout board or is it just the raw chip?

A: This listing is for the MCU-9911 module which includes the AK09911C sensor mounted on a small carrier board with standard pin headers for easy breadboarding.

Q: Can this be used outdoors in rainy conditions?

A: The module itself is not waterproof. For outdoor use in wet conditions, you must house it in a sealed, non-magnetic enclosure to protect the electronics.

Q: Does it support both 3.3V and 5V logic levels?

A: The sensor operates between 1.7V and 3.6V. If your microcontroller uses 5V logic, you will need a logic level converter to ensure safe communication.

Q: What is the maximum update rate for this sensor?

A: The AK09911C supports a continuous measurement mode with an output data rate of up to 100 Hz, which is sufficient for most real-time navigation applications.

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