> For the complete documentation index, see [llms.txt](https://adu.ppgg.in/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://adu.ppgg.in/functions.md).

# Functions

* Displays speed, RPM, water temperature ...... data obtained from the vehicle ECU etc. obtained from the vehicle ECU
* Displays temperature, humidity, and atmospheric pressure data of the vehicle interior
* Displays vehicle pitch (slope) and roll angle, and GPS information data
* The ADU starts automatically when the vehicle is started and powers off automatically when the engine is turned off
* Automatically adjusts the brightness of the main and secondary displays according to the ambient light intensity
* Manual power-off switch on the main unit to allow the ADU to be powered off when needed for temporary use of the ELM327 Bluetooth header