# DistanceSensorModeChangeRequest (UORB message) [source file](https://github.com/PX4/PX4-Autopilot/blob/main/msg/DistanceSensorModeChangeRequest.msg) ```c uint64 timestamp # time since system start (microseconds) uint8 request_on_off # request to disable/enable the distance sensor uint8 REQUEST_OFF = 0 uint8 REQUEST_ON = 1 ```