本系统基于单片机ATMEGA16L为核心处理器，由液晶屏LCD1602显示，采用4X4键盘输入，同时采用扬声器输出声音，本设计通过16个按键实现两种音质16个音符的弹奏、能播放4首音乐及音符同步显示，采用软件实现录音等功能，共同构成了一个具有多功能的电子琴。-The system is based on the core processor chip ATMEGA16L by LCD1602 LCD display, using 4X4 keyboard input, while using the speaker output sound, this design implements two through 16 key quality 16-note playing, music and can play four notes simultaneous display, recording and other functions implemented in software, together constitute a multifunctional keyboard.