STC12c5a系列单片机可用的2路PCA输出方波的C语言程序！改变部分参数即可使用！-Series of microcontrollers are available in STC12c5a 2-way PCA output square wave C language program! Change some parameters you can use!

Combined with PCA scale invariant feature transform (SIFT) algorithm, Import data files as input parameters matlab program is running, Dimensional phononic crystals FDTD method calculation examples band gap.