Z-ranger deck v2

Z-ranger deck v2

Laser ranging

Adds the possibility to fly with precise height control.

How it works

The Z-ranger deck V2  uses a laser sensor to measure the distance to the ground. The deck enables the Crazyflie to automatically maintain a constant distance to the objects under it when flying in automatic mode. Over a floor it will stay on the same height, but will follow the shape of a stair case up or down when going on adventures.

The maximum range for the ranger is 4 meters.



  • Fast, accurate distance ranging
  • Measures absolute range up to 4 m
  • Eye safe

Mechanical specifications

  • Weight: 1.6g
  • Size (WxHxD): 21x28x4mm
  • Designed for mounting under the Crazyflie 2.X

Electrical specification

  • VL53L1x ToF sensor to measure distance up to 4 meters within a few millimeters (depending on surface and light conditions).
  • 1-wire memory for automatic expansion deck detection


See the compatibility matrix


Firmware implementation

The Z-ranger’s driver is currently implemented in the crazyflie firmware. Its measurement is mostly used for the Complementary Filter for state estimation.


If you have any further questions please contact support@bitcraze.io