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9-axis compass module CJMCU-MPU9150
The CJMCU-MPU9150 is a 9-axis motion tracking breakout board based on the InvenSense MPU-9150 System in Package (SiP). It combines a 3-axis gyroscope, 3-axis...
The CJMCU-MPU9150 is a 9-axis motion tracking breakout board based on the InvenSense MPU-9150 System in Package (SiP). It combines a 3-axis gyroscope, 3-axis accelerometer, and 3-axis digital compass (magnetometer) in a single module, providing complete orientation and motion sensing over I2C.
The MPU-9150 integrates two chips: the MPU-6050 (gyroscope + accelerometer with onboard Digital Motion Processor) and the AK8975 (3-axis magnetometer). The built-in DMP can run MotionFusion algorithms directly on-chip, reducing the processing burden on your microcontroller.
Key Features
- 9 Degrees of Freedom – 3-axis gyroscope, 3-axis accelerometer, and 3-axis magnetometer
- Onboard DMP – Digital Motion Processor handles sensor fusion on-chip
- I2C Interface – Standard communication protocol for easy integration
- Breakout Board – Pins broken out to 0.1" headers for breadboard prototyping
- Low Power – Designed for battery-powered and portable applications
Ideal For
- IMU and orientation sensing projects
- Robotics navigation and stabilisation
- Wearable motion tracking devices
- Drone and vehicle heading estimation
Package Contents
- 1× CJMCU-MPU9150 9-Axis Breakout Board
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- Gyroscope
- A gyroscope measures rotation, such as how fast a board is turning around its X, Y, and Z axes. This matters for projects like gesture controls, balancing robots, and motion tracking where tilt or rotation changes need to be detected.
- Headers
- Rows of metal pins used to plug a module into a breadboard or connect it with jumper wires. Pre-soldered headers make the module easier to use straight away without needing to solder the pins yourself.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- IMU
- An Inertial Measurement Unit combines motion sensors to measure movement and orientation. It matters for asset tracking because it can detect movement, tilt, vibration, or changes in direction.
- magnetometer
- A sensor that measures magnetic fields, often used to work out compass direction. It matters because nearby magnets, motors, or metal objects can affect readings and may require calibration.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- MPU
- A microprocessor unit is a processor designed to run a full operating system such as Linux, usually with external memory and storage. It matters because it can handle higher-level tasks like networking, video, and AI that are beyond a typical microcontroller.
- MPU-6050
- A combined motion-sensing chip that includes a 3-axis accelerometer and a 3-axis gyroscope. The exact chip name matters because it determines the available ranges, data format, and example code or libraries you can use.
Find this product in
Sensors & Input
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