Principles and Applications of LED control card

LED control card principle and application of high-performance LED control card built monolithic LED driver chip, the controller through internal control procedures to the LED driver chip to send control signals and data, LED driver IC in accordance with the requirements of the control signals and data to produce the corresponding action, and thus each road red, green and blue LED to achieve a separate control. If the micro controller continuously transmits control signals and data to a string of LED driver chip, will enable each LED by the continuous coordination and control. It can change the effect desired converted into LED controller can handle data formats and appropriate control instructions, and then continuously sent to each LED driver chip, will enable the overall LED display showing the desired effect. Communication LED control card LED control card generally refers to the control LED display control system, since the control system generally appear in the form of PCB board and embed internal LED display, it is referred to as LED control card. From the control card functions are divided into: monochrome LED control card, two-color LED control card, single-color LED control card, full-color control card. From communication modes: synchronous communication, asynchronous communication. From the data transmission is divided into: RS232, RS485, TCP / IP network cable, U disk, SMS GSM / GPRS wireless communications. Now most of the market is the use of RS232 serial communication asynchronous single-color LED control card, as often seen in roadside display a red take the word is generally used to control the realization of this control card. With the development of LED control technology, fast forward control card communication by wireless control card field.