1# Screen and Camera Control Overview<a name="EN-US_TOPIC_0000001055101239"></a> 2 3This document describes how to use the IoT camera development board \(Hi3516D V300\) and its camera and screen to implement photographing, video recording, and video preview. 4 5This document helps you take a deep dive into OpenHarmony camera control. With this reference, you can develop devices, such as peephole cameras, smart rear-view mirrors, and smart displays. 6 7If you want to view the running effect first, see [Use Case](device-camera-control-example.md). To customize application behavior, modify the sample code by referring to APIs described in the "Development Guidelines" section. 8 9For basic concepts of camera development, see [Camera Development Overview](../subsystems/subsys-multimedia-camera-overview.md). 10 11