本程序使用普通输入口作为心率检测输入，检测的数据通过LCD1602显示(The program uses a common input port as a heart rate detection input, and the detected data is displayed by LCD1602)

验证阻值和酸痛关系，实时波形显示 （持续采集）(Verify the relationship between resistance and pain, real-time waveform display (continuous acquisition))