The OpenMV IMU Expansion Board not only captures acceleration, speed, and magnetic fields but also directly provides orientation, including quaternions and Euler angles.

OpenMV can capture the following sensor data:

• Absolute Orientation (Euler angles, 100Hz) - 3-axis orientation data 360°
• Absolute Orientation (Quaternions, 100Hz) - Quaternions represented as floating-point numbers for more precise operations.
• Angular Velocity (100Hz) - 3-axis rotational speed, unit is rad/s
• Acceleration (100Hz) - 3-axis acceleration (gravity + linear motion), unit is m/s^2
• Magnetic Field (20Hz) - 3-axis magnetic field, unit is micro Tesla (uT)
• Linear Acceleration (100Hz) - 3-axis linear acceleration (acceleration minus gravity), unit is m/s^2
• Gravity Acceleration (100Hz) - 3-axis gravity acceleration (minus all motion effects), unit is m/s^2
• Temperature (1Hz) - Ambient temperature, unit is Celsius

Tutorial

OpenMV IMU Expansion Board