UM7 Orientation Sensor

PololuSKU: RB-Pol-464
Manufacturer #: 2764

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  • Attitude and Heading Reference System
  • Contains a three-axis accelerometer
  • ±2000°/s (gyro), ±8 g (accelerometer), ±12 gauss (magnetometer)
  • Maximum logic voltage: 3.3V
  • Combines this data using an Extended Kalman Filter

The UM7 Orientation Sensor is an Attitude and Heading Reference System (AHRS) that contains a three-axis accelerometer, rate gyro, and magnetometer. It combines this data using an Extended Kalman Filter to produce attitude and heading estimates.

UM7 Orientation Sensor- Click to Enlarge

UM7 Orientation Sensor- Click to Enlarge

  • Size: 1.09″ × 1.12″ × 0.37″
  • Weight: 7.5 g

UM7 Orientation Sensor- Click to Enlarge

  • Interface: TTL serial, SPI
  • Minimum operating voltage: 4 V
  • Maximum operating voltage: 5.5 V
  • Maximum logic voltage: 3.3 V2
  • Axes: pitch (x), roll (y), and yaw (z)
  • Measurement range:
    • ±2000°/s (gyro)
    • ±8 g (accelerometer)
    • ±12 gauss (magnetometer)
  • Supply current: 50 mA
  • Case/enclosure: Y

Sensors and processing

  • Excellent gyro bias stability over temperature
  • Adjustable low-pass filter and EKF settings provide customizable performance for various applications
  • States and sensor data synchronized to GPS position and velocity using optional external GPS module
  • Allows for alignment calibration and third-order bias and scale factor temperature compensation for accelerometers, gyros, and magnetometer
  • Magnetometer soft and hard-iron calibration can be performed through the serial interface software

Attitude and heading

  • EKF estimation rate: 500 Hz
  • ±1° typical static pitch/roll accuracy
  • ±3° typical dynamic pitch/roll accuracy
  • ±3° typical static yaw accuracy
  • ±5° typical dynamic yaw accuracy
  • 0.5° angle repeatability
  • 0.01° angular resolution

Customer Reviews

Based on 1 review
um7 review

1. Easy to setup (windows only) 2. ROS driver available

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