基于AT89C51的简易电子琴设计与实现

随着计算机和通信技术的发展,电子琴等娱乐乐器走入千家万户。本系统采用STC89C51单片机,设计矩阵式键盘模块、LED显示管模块、扬声器模块、主程序部分、显示程序部分、按键检测部分等模块。经系统仿真,实现了16个独立按键分别代表16个不同的音符,有高有低等功能。本设计电路耦合性好,易操作,成本低,实用性强,便于携带。

With the development of computer and communication technology, electronic piano and other entertainment instruments have entered thousands of households. This system uses STC89C51 single chip computer to design matrix keyboard module, LED display tube module, loudspeaker module, main program module, display program module, key detection module and so on. Through system simulation, 16 independent keys representing 16 different notes are realized, which have the functions of high, low and so on. The designed circuit has good coupling, easy operation, low cost, strong practicability and portability.

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