Laser Range Finder Bricklet


  • Measures distance and velocity with laser pulses
  • Distance range 0-40m, resolution 1cm
  • Velocity range up to 0-127m/s, resolution up to 0.1m/s


The Laser Range Finder Bricklet can be used to extend the features of Bricks by the capability to measure distances and velocity. The distance is measured with the help of a laser pulse and the time-of-flight principle.

Technical Specifications

Property Value
Sensor LIDAR-Lite
Current Consumption
450mW (90mA at 5V, Laser off)
520mW (104mA at 5V, Laser on)
Distance (Range, Resolution) 0-40m, 1cm
Velocity (Range, Resolution)
0-12.7m/s, 0.1m/s
0-31.75m/s, 0.25m/s
0-63.5m/s, 0.5m/s
0-127m/s, 1.0m/s
Sample Rate up to 100Hz (depends on measured range)
Dimensions (W x D x H) 49 x 45 x 36mm (1.93 x 1.77 x 1.42")
Weight 39g


Test your Laser Range Finder Bricklet

To test a Laser Range Finder Bricklet you need to have Brick Daemon and Brick Viewer installed. Brick Daemon acts as a proxy between the USB interface of the Bricks and the API bindings. Brick Viewer connects to Brick Daemon. It helps to figure out basic information about the connected Bricks and Bricklets and allows to test them.

Connect the Laser Range Finder Bricklet to a Brick with a Bricklet Cable.

If you connect the Brick to the PC over USB, you should see a new tab named "Laser Range Finder Bricklet" in the Brick Viewer after a moment. Select this tab. Click the "Enable Laser" checkbox to enable the laser. If everything went as expected you can now see the measured distance of the sensor and a graph that shows the distance over time. In the image below we slowly moved a hand away from the sensor and to the sensor again.

Laser Range Finder Bricklet in Brick Viewer

After this test you can go on with writing your own application. See the Programming Interface section for the API of the Laser Range Finder Bricklet and examples in different programming languages.

Programming Interface

See Programming Interface for a detailed description.

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