Gauge capable of changing the color of screen backlight according to speed of vehicle

The invention discloses a gauge capable of changing the color of screen backlight according to the speed of a vehicle, including instruments, the meter adopts multicolor backlight, The color of the instrument backlight varies with the vehicle speed. The backlight color of the meter is controlled by a single chip microcomputer, and the output end of the single chip microcomputer is connected with aplurality of transistors, the transistors can control the lights of different colors to illuminate, thereby controlling the meter to display different backlight colors, and the multi-color backlightadopts three basic colors of red, green and blue. By redesigning the circuit board and the program code, the invention causes the color of the instrument backlight to change with the change of the vehicle speed, and can more directly remind the user of the driving speed and improve the safety factor through the changes of the colors of white, green, blue, orange and red, and at the same time, thewhole vehicle is improved,