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Adafruit 9-DOF Absolute Orientation IMU Fusion Breakout - BNO055 - STEMMA QT / Qwiic
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The Adafruit BNO055 STEMMA QT breakout delivers complete 9-DOF orientation sensing with onboard sensor fusion and plug-and-play I2C connectivity. The Bosch B...
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The Adafruit BNO055 STEMMA QT breakout delivers complete 9-DOF orientation sensing with onboard sensor fusion and plug-and-play I2C connectivity. The Bosch BNO055 combines an accelerometer, gyroscope, and magnetometer on a single die with an ARM Cortex-M0 processor that handles all fusion calculations internally, outputting ready-to-use orientation data over I2C.
This STEMMA QT version is smaller than the original breakout and features Qwiic-compatible connectors on both sides for no-solder I2C wiring. The same libraries and code work on both versions.
Sensor Outputs
- Absolute Orientation (Euler) – Three-axis orientation on a 360° sphere (100 Hz)
- Absolute Orientation (Quaternion) – Four-point quaternion for precise manipulation (100 Hz)
- Angular Velocity – Three-axis rotation speed in rad/s (100 Hz)
- Acceleration – Three-axis gravity + linear motion in m/s² (100 Hz)
- Linear Acceleration – Three-axis acceleration minus gravity in m/s² (100 Hz)
- Gravity Vector – Three-axis gravitational acceleration in m/s² (100 Hz)
- Magnetic Field Strength – Three-axis in µT (20 Hz)
- Temperature – Ambient temperature in °C (1 Hz)
Key Features
- Onboard Sensor Fusion – BNO055 handles all orientation calculations internally
- STEMMA QT / Qwiic Connectors – Plug-and-play I2C with no soldering required
- I2C Interface – 3.3V and 5V logic safe
- Compact Form Factor – Smaller than the original breakout
- Dual Address Support – Address-selection jumper for two BNO055s on one I2C bus
- Four Mounting Holes – For secure installation
- Arduino and CircuitPython Support – Same libraries as the original breakout
Also Available
- BNO055 Original Breakout – Larger form factor with header pins
Ideal For
- Robotics and drone orientation
- Motion tracking and gesture detection
- VR/AR controllers
- Compass and navigation projects
Package Contents
- 1× Adafruit BNO055 9-DOF IMU STEMMA QT Breakout (assembled and tested)
- 1× Header strip
Note: STEMMA QT / Qwiic cable not included. Soldering required only if using breadboard header pins.
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.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- 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.
- 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.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
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