heart-rate-measurement3

protues的教程，初学者的必备，可以学习很多东西，对自己收益很大(study protues)

说明：  模数转换ADC0832，基于51单片机的c语言程序(Analog to digital converter ADC0832, based on 51 MCU c language program)

简单汽车租赁系统 大学C++开发实习参考(Car rental system)

运动控制卡的详细开发资料，可以用来驱动步进电机(Motion control card developed detailed information can be used to drive stepper motor)

基于热敏电阻电路仿真 proteus 仿真 基于热敏电阻电路仿真 proteus 仿真(re min dian zu fang zhen re min dian zu fang zhen re min dian zu fang zhen re min dian zu fang zhen)

无线通讯nrf905，很适合初学者来学习，里边包括了对射频寄存器的设置什么的(Wireless communication nrf905, it is suitable for beginners to learn, inside contains the settings for RF registers what)

单片机音频通信9170和9200，接收发送源程序(9170 and 9200 microcontroller audio communication, the receiver sends source)

基于FRDM-KL25Z及简单运放（LM324）设计出了一套小巧、低成本的心电监测装置。它不但能够结合上位机实时显示心电图而且能够将采集的心电信号储存于SD卡，用于24h心电监护，以备观察不同时间段心血管疾病的症状。(FRDM-KL25Z and simple operational amplifier (LM324) based on the designed ECG monitoring device with a set of small, low cost. It can not only combine with the real-time display of the host computer and can store the collected ECG signals in SD card for 24h ECG monitoring for the observation of the symptoms of cardiovascular diseases at different time periods. )

定时器：设定时间格式（00：:00）后，到时间弹出提示(timer：set time(00:00),then run up)

基于单片机和C语言的，步进电机加速减速匀速演示，希望方便大家(Based on SCM and C language, stepper motor acceleration and deceleration uniform presentation, I hope to facilitate)