心率计（脉搏测量仪）

代码说明：

  本设计利用现代电子技术、传感器技术等，设计出一款测量准确、简单易用，造价便宜的电子心率计。此心率计总体包括了红外心率检测电路、前端信号处理电路、控制电路和电源转换电路。并用C语言编写控制程序，实现对电路的控制。(This design uses modern electronic technology, sensor technology, etc. to design an electronic heart rate meter with accurate measurement, simple use and low cost. The heart rate meter includes infrared heart rate detection circuit, front-end signal processing circuit, control circuit and power conversion circuit. The control program is written in C language to realize the control of the circuit.)