Adafruit BNO055 9-DOF Absolute Orientation IMU Fusion Breakout - STEMMA QT / Qwiic

The integrated ARM Cortex-M0 processor handles all complex sensor fusion algorithms in real-time. This means it fuses data from the accelerometer, gyroscope, and magnetometer internally, outputting stable, drift-corrected orientation data like Euler angles and quaternions directly. This offloads significant computational burden from your main microcontroller, simplifying code and improving system performance.

The board features a 4-pin STEMMA QT / Qwiic JST connector, which is a plug-and-play standard for I2C. Simply use a compatible STEMMA QT cable to connect the board's connector to a matching port on a host board like an Adafruit QT Py or SparkFun Qwiic shield. This provides power, ground, SDA, and SCL connections instantly, with no soldering required.

Euler angles (roll, pitch, yaw) describe orientation using three sequential rotations around specific axes, which is intuitive but can suffer from a singularity known as gimbal lock. Quaternions use a four-dimensional representation that avoids gimbal lock and provides smoother interpolation, making them preferable for advanced 3D graphics, robotics control, and motion filtering. The BNO055 provides both formats simultaneously.

Yes. The BNO055 breakout is designed with logic level shifting, allowing it to operate from a power supply between 3.3V and 5V DC. The I2C communication lines are also tolerant of both voltage levels. You can power it directly from the 5V or 3.3V pin of an Arduino Uno, Mega, Leonardo, or a 3.3V board like an ESP32 or Raspberry Pi without risk of damage.