Design Of Wireless LED Display System Based On ARM

In the information society, LED display as a communication media, in areas such as transportation, weather forecasting, advertisement, notice, industrial and agricultural production, commercial application of information is widely used, and has become a city symbol of modernization.This article first introduced the state of LED display at home and abroad, in analyzing the working principle of LED display, the combination of LED display control system and display driver device specific requirements, puts forward to use as a control LPC2124 embedded processor core, the use of Norway Nordic offering Single-chip RF transmitter to send radio show information nRF905 overall design. Because LPC2124 has the rich interface of resources, the use of its SPI port and drive the chip of serial transmission SD16726, which simplifies the system architecture to a large extent, an increase of system reliability. Single-chip transceiver chip implementation of wireless data transmission of information and updates, avoids the use of mobile communications based on the Chinese operator's GSM / GPRS data communications network, and bring in the additional information update overhead costs. In the system hardware design, given the various functional modules: including power supply, clock circuitry, memory expansion, RF module, LED module, such as scan driver of the specific design. Finally, in system software design, completed LED display of data to send, receive data and display control of display driver design, and realized the whole system.During the design process, through various tests and experiments to do to verify the wireless LED display system based on ARM is designed to be entirely feasible, with a very broad applicationprospects.