This use case takes **camera\_sample**\(contained in the source code\) as an example for photographing, recording, and previewing on the development board.
- You can obtain source code of the sample from **applications/sample/camera/media/camera\_sample.cpp**.
- Before running the sample camera, you need to compile, burn, and run the image. For details, see [Hi3516 Development Board](../quick-start/quickstart-lite-introduction-hi3516#section26131214194212).
- Before running the sample camera, you need to compile, burn, and run the image. For details, see [Quick Start Overview](../quick-start/quickstart-overview.md).
>After the development board is started, the home screen is loaded and displayed above the media layer by default. To prevent covering **camera\_sample**, you should remove the home screen during compilation or packaging.
# Running on the Device<a name="EN-US_TOPIC_0000001054809161"></a>
Before you install the application and run it on the development board, install the DevEco Device Tool by following operations provided in [HUAWEI DevEco Device Tool User Guide](https://device.harmonyos.com/en/docs/ide/user-guides/service_introduction-0000001050166905). Burn OpenHarmony into the development board, and run it on the board. For details about how to compile, burn, and run an image, see the [Hi3516 Development Board](../quick-start/Readme-EN.md). After the image is running normally and the system is started properly, perform the following steps to install or uninstall the application:
Before you install the application and run it on the development board, install the DevEco Device Tool by following operations provided in [HUAWEI DevEco Device Tool User Guide](https://device.harmonyos.com/en/docs/ide/user-guides/service_introduction-0000001050166905). Burn OpenHarmony into the development board, and run it on the board. For details about how to compile, burn, and run an image, see the [Quick Start Overview](../quick-start/quickstart-overview.md). After the image is running normally and the system is started properly, perform the following steps to install or uninstall the application:
1. Store the compiled unsigned application installation package and installation tool in an SD card and insert the SD card into the development board slot. The installation tool is in **dev\_tools** of the directory where the image file is generated.
2. Run the following command to disable signature verification, which is enabled by default for application installation:
>This development example applies to standard, small, and mini OpenHarmony systems. The following sections use the standard system as an example. You can refer to the specific guide for your system to set up the environment.
## Developing a Touchscreen Driver<a name="section15233162984520"></a>
