一种采用蓝牙技术控制的LED点阵屏设计

摘要

According to the LED display problem in application, a LED dot matrix text display scheme, with low cost and convenient updates, is presented in this paper.A C8051F410 is employed as MCU in the system.Bluetooth module is used to receive data that are transmitted from Bluetooth mobile phone.Based on font chip controlled by MCU, conversion of character set and extraction of lattice codes for these data are done.Then the display data are updated on the LED lattice screen controlled by MCU.The control is stability and convenient in practical use.%针对LED显示屏应用中存在的问题,给出了一种低成本、内容更新便捷的点阵LED文字显示屏的方案.系统采用C8051F410作为MCU,利用蓝牙模块接收手机蓝牙传输的数据,并将数据通过单片机控制字库芯片进行字符集的转换、点阵代码的提取,进而由单片机控制点阵屏更新显示数据.经实际使用,控制稳定、方便.