SparkFun VR IMU Breakout - BNO086 (Qwiic)

The SparkFun VR IMU Breakout is a cost-effective solution for those interested in exploring the world of virtual reality. At the core of this product is CEVA’s BNO086, a triple-axis accelerometer/gyro/magnetometer System in Package (SiP) with a 32-bit ARM© Cortex™ M0+. The BNO086 Inertial Measurement Unit (IMU) provides accurate rotation vector headings, making it ideal for VR and other heading applications. The sensor data is combined and drift-corrected into precise, reliable IMU information, making the VR IMU a perfect choice for any project requiring orientation or motion sensing.

The SparkFun VR IMU Breakout board is equipped with two I²C Qwiic connectors, simplifying the interface with the tiny QFN package. As part of SparkFun’s Qwiic connect system, there is no need for soldering to understand the orientation. For those who prefer using a breadboard, 2.54mm-spaced pins are also provided.

Originally designed for Android-based cellular phones to process computations for virtual reality goggles, the BNO080 has now been replaced by the BNO086 with enhanced features. These include a 14-bit accelerometer fusion, reduced idle state power, and Interactive Calibration. The sensor is powerful and comes with a complex interface. However, the board features solder jumpers, allowing you to choose between two different I²C addresses. If I²C is not your preferred communication choice, the sensor also supports SPI and UART. An I²C-based library is provided that offers the rotation vector, acceleration, gyro and magnetometer readings, step counting, and activity classifier.

The SparkFun Qwiic Connect System is an ecosystem of I²C sensors, actuators, shields, and cables designed to make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector, reducing the amount of required PCB space. The polarized connections ensure that you can’t connect it incorrectly.

Features:

• Operating Voltage: 2.4V - 3.6V (Typically 3.3V via Qwiic cable)
• I²C (Default): Up to 400kHz
• SPI: Up to 3MHz
• UART: 3Mbps
• Rotation Vector: Dynamic Error: 3.5°, Static Error: 2.0°
• Gaming Rotation Vector: Dynamic Error: 2.5°, Static Error: 1.5°, Dynamic Heading Drift: 0.5° / min
• Geomagnetic Rotation Vector: Dynamic Rotation Error: 4.5°, Static Rotation Error: 3.0°
• Gravity Angle Error: 1.5°
• Linear Acceleration Accuracy: 0.35m/s²
• Accelerometer Accuracy: 0.3m/s²
• Gyroscope Accuracy: 3.1° / sec
• Magnetometer Accuracy: 1.4µT
• 2x Qwiic Connection Ports: I²C Address: 0x4B (default), 0x4A
• I²C Pull-Up Resistors (2.2kΩ)
• Power LED
• Jumpers: Power LED, I²C Pull-up Resistors, Address Select, Protocol Selection 0, Protocol Selection 1
• Board Dimensions: 25.4mm x 30.48mm
• Weight: 3g

Documents:

• Schematic
• Eagle Files
• Board Dimensions
• Hookup Guide
• BNO086: Datasheet, Migration Guide, Tare Function Usage Guide, Sensor Hub Transport Protocol
• Qwiic Page
• Arduino Library
• GitHub Hardware Repo