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求一款做电子琴琴键压电传感器芯片~



1.要求以STM32单片机为核心控制,实现8音及以上电子琴的设计;
2.要求利用压电传感器,实现对按键强弱的声音转换,即按得重声音大,按得轻,声音小;
3.要求根据按键的时间长短控制音长;
4.要求上述参数在实时液晶屏上显示;