# PX4FLOW Smart Camera (Deprecated) PX4 does not support the PX4Flow [optical flow](../sensor/optical_flow.md) sensor from PX4 v1.13 (it doesn't work with current firmware). PX4 may work with older PX4Flow firmware. Documentation has been removed (if needed, see [Legacy Docs for PX4Flow in v1.13](https://docs.px4.io/v1.13/en/sensor/px4flow)).