The Z-ranger deck uses a laser sensor to measure the distance to the ground and adds the possibility to fly with precise height control. Using the ToF sensor VL53L0x the Crazyflie 2.X can measure the distance from the sensor to a ground object at up two 2 meters.
Features
Fast, accurate distance ranging
Measures absolute range up to 2m
Eye safe
Specifications
VL53L0x ToF sensor to measure distance up to 2 meters within a few millimeters (depending on surface and light conditions).
1-wire memory for automatic expansion deck detection