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Accelerometers, Gyros, GPS, & Compasses. Measure acceleration and track rotation with these accelerometers, gyroscopes, compasses/magnetometers, and combined inertial measurement units (IMUs) and orientation sensors.
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UM7-LT Orientation Sensor
Item Details
UM7-LT Orientation Sensor
Item Name:
UM7-LT Orientation Sensor
Item #:
TS-085-UM7
Manufacturer:
Pololu
MPN:
2763
Your Price:
$139.95
Availability:
9 Ready to Ship!
Quantity:

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Description

The UM7 orientation sensor is a third-generation Attitude and Heading Reference System (AHRS) from Redshift Labs that produce attitude and heading estimates from the triaxial accelerometer, rate gyro, and magnetometer data. Unlike a typical inertial measurement unit (IMU), which only provides raw sensor readings, the UM7 features an onboard microcontroller that combines sensor data using a sophisticated Extended Kalman Filter (EKF) to generate orientation estimates 500 times a second.

Connections for power and TTL serial communication can be made to the UM7 through a polarized five-pin male connector on one side, which mates with an included cable assembly. A pair of six-pin expansion headers on the other side of the board provide additional connectivity options, including an alternative SPI interface and a secondary serial interface that can be connected to an external GPS module. Additional cable assemblies for the expansion headers are not included.

Specifications

  • Dimensions: 1.06" x 1.02" x 0.26"
  • Weight: 3.5g (.012oz)
  • Interface: TTL serial, SPI
  • Minimum Operating Voltage: 4V
  • Maximum Operating Voltage: 5.5V
  • Maximum Logic Voltage: 3.3V (The main UART pins, TX and RX, are 5V-tolerant and can be used directly with 5 V systems that are guaranteed to read 3.3 V as high. The secondary UART and some of the SPI pins are NOT 5V-tolerant.)
  • Axes: Pitch (x), Roll (y), and Yaw (z)
  • Measurement Range:
    • Gyro: ±2000°/s
    • Accelerometer: ±8 g
    • Magnetometer: ±12 gauss
  • Supply Current: 50mA
  • Case Enclosure Not Included

Features

  • Output data:
    • Attitude and heading (Euler angles)
    • Attitude quaternion
    • magnetometer, accelerometer, gyro data
    • GPS altitude, position, velocity (with optional external GPS)
  • 3.3 V TTL serial interface (UART) with baud rates up to 921,600 bps can stream data or provide updates on request
  • Transmits data using human-readable NMEA strings (up to 100 Hz broadcast), binary packets for higher efficiency (up to 255 Hz broadcast), or a combination of both
  • Flexible communication architecture allows UM7 to transmit any combination of data at individually adjustable rates
  • Connects to the Redshift Serial Interface software to allow for real-time plotting of sensor data, logging, device configuration, and magnetometer calibration
  • SPI interface available through expansion connector
  • 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

Product Documentation:

 



The UM7-LT orientation sensor from Redshift Labs is an Attitude and Heading Reference System (AHRS) that contains a three-axis accelerometer, rate gyro, and magnetometer.
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