valentinep20gift

crc校验的一种计算方式，可以用于网络协议或串口、can协议的校验位计算，有封装好的函数(A calculation crc check can be used for network protocols or serial port, can protocol parity bit calculation, there is a good function package)

使用STM32的RTC时钟做的一个石英时钟，能掉电保存，时间准确，界面美观(The use of STM32 RTC clock to do a quartz clock, can save power, accurate time, beautiful interface)

使用卡尔曼滤波算法，实现基本的MPU6050倾角计算(The basic MPU6050 angle calculation is realized by using the Calman filter algorithm)

nrf905模块的无线通信例子，希望有用(Nrf905 module wireless communication example, hope useful)

直流斩波变化的仿真和一些参考文献 可以学习一下(The simulation of dc chopper change and some references can learn )

基于labwindows/cvi设计的温湿度控制上位机软件，可以监测温湿度实时情况。(Based on the labwindows/cvi design of temperature and humidity control of the PC software, can monitor the real-time temperature and humidity.)

NUC100最小系统！此包含48PIN和100PIN！(Support 8G SD card, personally TESTED!)

心率监测；AT89C51单片机；光电传感器(Heart rate monitoring; AT89C51 single chip microcomputer; photoelectric sensor)

说明：  控制说话的内容输出,因为现在基本上都需要用到语音控制模块，在学校公司家庭等等。语音播放控制，家庭智能锁开门，门禁系统控制。(Control the content of the output, because now basically all need to use voice control module, school, company, home and so on. Voice playback control, home intelligent lock door, access control system control.)

说明：  stm32+风速风向的测量，通过模拟量输入经过adc转换，测量风速及风向(STM32 + wind speed and direction measurement, through analog input through ADC conversion, measurement of wind speed and direction)