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Version: ROS 2 Humble

Redshift Labs UM7

Item Numbers

DescriptionCPR ItemSales KitInstallation Kit, With Fasteners
Redshift Labs UM7 sensor011914028881028880


Mass11 g
Voltage, Minimum4 V
Voltage, Maximum5.5 V
Voltage, Sensor5 V
Power, Average0.25 W
DataUART ( RS-232 )
Default setting is 115200 baud
Ingress Protection, SolidsUnknown ( assume 4 )
Ingress Protection, LiquidsUnknown ( assume 0 )
Operating Temperature, Min-40 °C
Operating Temperature, Max85 °C

Software Bringup

This sensor is included in the Clearpath Robotics robot package that is installed on all of our robots. This allows you to add or remove the sensor from your robot's software description by modifying the robot configuration yaml.

- model: redshift_um7
urdf_enabled: true
launch_enabled: true
parent: base_link
xyz: [0.0, 0.0, 0.0]
rpy: [0.0, 0.0, 0.0]
port: /dev/clearpath/imu
frame_id: imu_0_link
tf_ned_to_enu: true

Package and Setup

The RedShift UM7 IMU uses the umx_driver ROS 2 package. The driver is open source, maintained by the ROS community, and hosted on GitHub.

For more specifics on the way Clearpath's configuration system launches the umx_driver, see the RedShift UM7 launch file and the default parameter file in clearpath_sensors.

Device Path

The port ROS parameter must be set to the device path of the RedShift UM7. To simplify this process, use the /dev/clearpath/imu path. This path is only available when the Clearpath robot UDEV rules are installed. These are installed alongside the clearpath_robot package. If the IMU is connected, but the /dev/clearpath/imu device is not, check the file /lib/udev/rules.d/60-ros-humble-clearpath-robot.rules exists.


Clearpath is committed to your success. Please get in touch with us and we will do our best to get you rolling again quickly:

To get in touch with a salesperson regarding Clearpath Robotics products, please email

If you have an issue that is specifically about ROS and is something which may be of interest to the broader community, consider asking it on If you do not get a satisfactory response, please ping us and include a link to your question as posted there. If appropriate, we will answer in the ROS Answers context for the benefit of the community.

Further Reading

  1. Clearpath Robotics Store
  2. User Manual
  3. Redshift Labs UM7 Website
  4. ROS webpage