What is the purpose of a car compass?

[MacQuinn]

Compass function: The red triangle of the compass remains fixed, and the corresponding directional letters indicate that aligning with the red triangle shows the current heading direction of the car, serving as a compass. The LCD screen in the middle of the compass displays the current interior temperature, current time, or can be set to show directional degrees. More details are as follows: Definition: An electronic compass, also known as a digital compass, is widely used as a navigation instrument or attitude sensor under modern technological conditions. Advantages: Compared to traditional pointer-type and gimbal-structured compasses, electronic compasses have lower energy consumption, smaller size, lighter weight, higher precision, and can be miniaturized. Their output signals can be processed to achieve digital display. They can not only be used for direction indication, but their digital signals can also be directly sent to an autopilot to control the steering of a vessel.