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# Adafruit BNO055 + BMP280 BFF Add-On for QT Py

**Brand:** Adafruit

**URL:** https://littlebirdelectronics.com.au/products/adafruit-bno055-bmp280-bff-add-on-for-qt-py-ada5937

## Pricing

- **Price:** $60.20
- **Stock:** In stock at supplier
- **Local warehouse:** 0 units
- **Supplier (Adafruit):** 100 units
- **SKU:** AF-5937

## Description

The Adafruit BNO055 + BMP280 BFF is a compact add-on board that gives any QT Py or Xiao board powerful 9-degree-of-freedom (9-DoF) motion sensing plus barometric pressure and altitude measurement. It mounts directly onto the back of your QT Py, creating a tiny but capable sensor package. The BNO055 handles all sensor fusion on-chip, delivering ready-to-use orientation, acceleration, and magnetic field data over I2C without the need for complex algorithms. The BMP280 adds barometric pressure sensing with ±1 hPa accuracy, enabling altitude estimation to ±1 metre. Both sensors communicate via I2C with configurable addresses (BNO055 @ 0x28, BMP280 @ 0x77) and address-changing jumpers. BNO055 Sensor Outputs Absolute Orientation (Euler) – Three-axis orientation on a 360° sphere at 100 Hz Absolute Orientation (Quaternion) – Four-point quaternion output at 100 Hz Angular Velocity – Three-axis rotation speed in rad/s at 100 Hz Acceleration – Three-axis acceleration (gravity + linear motion) in m/s² at 100 Hz Linear Acceleration – Three-axis acceleration minus gravity in m/s² at 100 Hz Gravity Vector – Three-axis gravitational acceleration in m/s² at 100 Hz Magnetic Field Strength – Three-axis sensing in µT at 20 Hz Temperature – Ambient temperature at 1 Hz BMP280 Sensor Outputs Barometric Pressure – ±1 hPa absolute accuracy Altitude – ±1 metre accuracy derived from pressure Temperature – ±1.0°C accuracy Key Features BFF Form Factor – Mounts directly on the back of any QT Py or Xiao board On-Chip Sensor Fusion – BNO055 processes 9-DoF data internally I2C Communication – Both sensors on the SDA/SCL pins Address Jumpers – Configurable I2C addresses for both sensors Optional Interrupt/Reset – Additional BNO055 control pins available Flexible Mounting – Solder directly or use headers for a removable sandwich Important: QT Py board is not included. Some QT Py boards have two I2C ports — make sure you use the port on the SDA/SCL pins, not the QT port. Ideal For Compact drone and robotics navigation Motion tracking with altitude sensing Wearable orientation and altitude projects Miniature weather and motion data loggers Package Contents 1× Adafruit BNO055 + BMP280 BFF add-on board 1× Header strip for mounting

**Product Type:** physical

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*Source: [Adafruit BNO055 + BMP280 BFF Add-On for QT Py](https://littlebirdelectronics.com.au/products/adafruit-bno055-bmp280-bff-add-on-for-qt-py-ada5937)*