Design And Control Of Rotary LED Display Screen Based On Single Chip Microcomputer

At present,LED displays are widely used,but they are simple in shape and have no new ideas.Moreover,the traditional rotating LED displays are separately powered by rotating parts and batteries,so the battery power supply time is short.With a limited charging time,it can not work continuously,and may destroy the whole balance,and need counterweight.All those increase the power consumption of the motor,and further shorten the service time,the service life of battery and motor.The traditional rotating LED has a low efficiency and high cost.Furthermore,the traditional display screen has a high induced temperature and the poor heat dissipation.The efficiency of the LED on the traditional display screen has not been maximized.It results in a waste of resources.LED information display technology also needs more and more intelligent and diversified functions.This article designs a set of devices,based on the single chip microcomputer to use the rotary LED to display text,which take advantage of our eye vision to keep this feature,It only needs two rows of LEDs rotating at high speed under the action of the motor to show a very good animation effect,that is,it can realize the function of a whole display screen with very little LED,and the range of rotation is a circumferential angle,so that the resources can be used reasonably.It can also reduce the cost,make up for the shortcomings of the flat panel display.The thesis is aimed at improving the whole system life by wireless power supply,based on the working principle of rotating LED display screen.We used STC89C52 RC single chip microcomputer as the control system to realize lighting and extinguishing the LED.We used clock DS1302 to display date and time information accurately,which improved its practical application.We used PCB board to improve the efficiency in the manufacturing process.We used infrared diode to realize constant speed,which ensure that the text and animation are not scrambled.We used Keil uVision4 software development platform and C language to write a reasonable program algorithm,and we uploaded to single chip microcomputer and achieved the display control.