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Home / Sensors / AK09911C High-Sensitivity Geomagnetic Hall Sensor, Three-Axis Compass Magnetometer, Electronic Compass Module

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Sensors
Origin -
Model Number AK09911C
Sensor Type Three-Axis Geomagnetic Hall Sensor
Interface I2C / SPI
Operating Voltage 1.7V to 3.6V
Sensitivity Range ±4900 µT
Output Data Rate 10 Hz to 100 Hz
Package Type DFN-12 (3.0 x 3.0 mm)
Operating Temperature -40°C to +85°C
Application Electronic Compass, Navigation Systems
Manufacturer Asahi Kasei Microdevices

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 4/5

Small footprint, big performance

The DFN package is tiny, which saved a lot of space on my PCB. Just make sure you have good soldering skills or a reflow station.

A

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect for university projects

Used this for my final year compass project. The data output is consistent and the library support for Arduino and Raspberry Pi is decent.

A

Anonymous

Mar 18, 2026

Rating: 4/5

Great value, easy integration

Integrated smoothly with my STM32 board using the I2C interface. Documentation could be slightly clearer on calibration steps, but overall a solid component.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Excellent precision for drone projects

This sensor provides incredibly stable heading data for my custom drone build. The noise floor is very low compared to older models I've tested.

A

Anonymous

Mar 07, 2026

Rating: 5/5

High sensitivity as advertised

The high-sensitivity mode works perfectly for detecting subtle magnetic field changes. Power consumption is also very efficient for battery-operated devices.

A

Anonymous

Mar 04, 2026

Rating: 5/5

Reliable for automotive prototypes

We used these in a prototype vehicle navigation system. They handled the temperature variations in the test environment without drifting significantly.

5 FAQ

Q: What is the lead time for bulk orders of over 1000 units?

A: For orders exceeding 1000 units, please contact our sales department directly via the 'Contact Us' form. Lead times vary based on current stock but are typically 2-4 weeks.

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

A: This listing is for the raw AK09911C chip in DFN packaging. If you need a breakout board with voltage regulators and pull-up resistors, please check our 'Modules' category.

Q: What is the maximum sampling rate supported?

A: The AK09911C supports continuous measurement modes up to 100 Hz. For specific register settings to achieve this, please refer to page 14 of the datasheet.

Q: Is this compatible with 5V logic microcontrollers like standard Arduino Uno?

A: The sensor operates at 1.7V to 3.6V. While the I2C lines are often tolerant, we strongly recommend using a logic level shifter when connecting to 5V boards to prevent damage.

Q: Do you provide calibration software for this sensor?

A: We do not provide proprietary software, but the sensor follows standard I2C protocols. There are many open-source calibration libraries available on GitHub compatible with this chipset.

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