# 功能

* 显示从车辆 ECU 获取到的速度、转速、水温...... 等数据
* 显示汽车车内温湿度、大气压力数据
* 显示汽车俯仰角（坡度）和横滚角、GPS 信息数据
* 车辆启动时 ADU 自动启动，熄火后自动断电
* 根据环境光线强度自动调整主副显示屏的亮度
* 主机上有手动断电开关，方便在需要时给 ADU 断电，以将 ELM327 蓝牙适配器临时他用


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If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://adu.ppgg.in/zh-cn/functions.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.