Description
Virtual reality is popular, but access to the technology that powers it shouldn't cost hundreds of dollars. Fortunately, the SparkFun VR IMU Breakout can help with that. CEVA's BNO086 is the central component of the system. It is a 32-bit ARM Cortex M0+ combined triple-axis accelerometer/gyro/magnetometer System in Package (SiP). With a static rotation inaccuracy of no more than two degrees, the BNO086 Inertial Measurement Unit (IMU) generates precise rotation vector headings that are well suited for virtual reality and other heading applications. We have been waiting for the VR IMU, which combines and drift-corrects all of the sensor data to produce accurate and relevant IMU information. It is ideal for any project where motion or orientation detection is required.
Two I2C Qwiic connectors have also been added to this IMU breakout board to facilitate a more straightforward interface with the small QFN packaging. Since it's a component of SparkFun's Qwiic connect system, figuring out how things are oriented won't require any soldering. If you would rather utilise a breadboard, we still have broken out 0.1"-spaced pins available.
The BNO080 was created to be integrated into Android-based mobile phones, enabling you to use your phone to perform all the calculations required for virtual reality goggles. CEVA provides the updated feature-rich drop-in replacement BNO086 (14-bit accelerometer fusion, reduced idle state power, and Interactive Calibration) with the BNO080 EOL. The sensor has a sophisticated interface because of its great power. There are two alternative I2C addresses that you can choose from on the board because of the solder jumpers. However, the sensor can also communicate via SPI and UART if I2C is not your first choice for communication! Additionally, we have created an I2C-based library that offers the following features: step counting, acceleration, gyro and magnetometer readings, rotation vector—the reading that most people desire from an IMU and activity classifier such as riding a bike.
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Operating Voltage
- 2.4V - 3.6V
- Typically 3.3V via Qwiic cable
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I2C (Default): Up to 400kHz
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SPI: Up to 3MHz
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UART: 3Mbps
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Rotation Vector
- Dynamic Error: 3.5°
- Static Error: 2.0°
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Gaming Rotation Vector
- Dynamic Error: 2.5°
- Static Error: 1.5°
- Dynamic Heading Drift: 0.5° / min
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Geomagnetic Rotation Vector
- Dynamic Rotation Error: 4.5°
- Static Rotation Error: 3.0°
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Gravity Angle Error: 1.5°
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Linear Acceleration Accuracy: 0.35m/s2
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Accelerometer Accuracy: 0.3m/s2
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Gyroscope Accuracy: 3.1° / sec
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Magnetometer Accuracy: 1.4µT
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2x Qwiic Connection Ports
- I2C Address: 0x4B (default), 0x4A
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I2C Pull-Up Resistors (2.2kΩ)
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Power LED
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Jumpers
- Power LED
- I2C Pull-up Resistors
- Address Select
- Protocol Selection 0
- Protocol Selection 1
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Board Dimensions: 1.0in. x 1.2in. (25.4mm x 30.48mm)
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Weight: 3g
