介绍PS/2标准健盘的第二套扫描码和命令集，并给出在单片机系统中支持PS/2健盘的硬件连接方式和利用Keil C51语言实现的驱动程序设计及部分代码。该驱动程序可以方便地移植到其他单片机或嵌入式系统中。- Introduce PS/2 standard Kin disk scanning the second set of code and command set, and give support in the single-chip microcomputer system PS/2 K

反射式血氧（SPO2）计算，包括基线滤波，脉搏波特征点提取，R值计算，可移植到单片机（STM32）-Reflective oximetry (SPO2) calculations, including baseline filtering, pulse wave feature point extraction, R value calculation, can be transplanted to the microcontroller (STM32)