主要用到的时淘宝 育松店的40块钱的12864进行波形的显示，本意是想做个示波器，这个是核心程序，不是原创，但是网上很难找到-Mainly used when Taobao Yu-song store 40 dollars 12864 waveform display, intended to be a scope, this is the core program, not original, but very difficult to find online