7Semi_BNO055

A lightweight and minimal Arduino library for the Bosch BNO055 9-DOF IMU sensor.

Supports initialization, raw data reading (Accel / Gyro / Mag / Linear / Gravity), Euler angles, quaternions, calibration helpers, and axis remapping.
Designed for low flash usage — compatible with AVR, ESP32, ESP8266, RP2040, STM32, and other Arduino platforms.

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✨ Features

• I2C communication with auto-detection at address 0x28 or 0x29
• Works on standard and custom I2C pins (for ESP32, STM32, etc.)
• Orientation data:
  • Euler angles (heading, roll, pitch)
  • Quaternion (w, x, y, z)
• Raw data reading:
  • Accelerometer
  • Gyroscope
  • Magnetometer
  • Linear acceleration
  • Gravity vector
• Sensor configuration:
  • Operation modes
  • Power modes
  • Bandwidth & range (per sensor)
  • Axis remapping
• Calibration helpers and sensor offset saving/restoring

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⚡ Getting Started

1. Installation via Arduino Library Manager

1. Open the Arduino IDE

2. Go to:

   • Sketch > Include Library > Manage Libraries… (IDE 1.x), or
   • Use the 📚 Library Manager in the sidebar (IDE 2.x)

3. In the search bar, type: -7Semi BNO055

4. Click the Install button

Once installed, include the library in your sketch:

#include <7semi_bno055.h>

2.Wiring (I2C)

BNO055 Pin	Arduino Pin
VIN	3.3V or 5V
GND	GND
SDA	A4 (Uno) or custom SDA
SCL	A5 (Uno) or custom SCL

3.Applications

Robotics and drones

Motion tracking and stabilization

AR/VR and head-tracking

Inertial navigation

Wearables and IoT motion sensing