timer

STM32F407信号发生器输入一个正弦波，AD采样，DA输出，系统频率应该是输入的波形的频率的10倍以上保证输出波形的完整性，系统的输出频率可以使用示波器测试出。(Stm32f407 signal generator input a sine wave, AD sampling, Da output and system frequency should is 10 times the frequency of the input waveform to guarantee that the above output waveform of integrity, the output frequency of the system can use oscilloscope to test out. )

电子密码锁设计，实现四位密码开锁，可改密码(Electronic password lock design to achieve four bit password lock, password can be changed)

飞思卡尔CAN扩展帧通信,Can盒发送数据，单片机接受并返回数据(The Carle CAN extended frame communication, Can box to send data, the microcontroller to accept and return data )

Visual C++数据库编程与实例 pdf超高清电子版与原书光盘，非常不容易搞来的，福利来啦！200多M，只能分割，敬请见谅！主卷是VisualCDatabaseProgramAndExamples.zip，还需要下载12个分卷，此为第5分卷(Visual C++ database programming with examples pdf electronic version of ultra-high-definition optical disc with the original book, is not easy to engage in, and benefit coming! More than 200 M, only split, please forgive me!)

基于单片机的霍尔传感器测速源码，带有蜂鸣器报警功能。(Hall speed sensor based on single-chip computer source, with a buzzer alarm function.)

该程序主要用来测量信号的脉冲宽度，具有较好的稳定性和精度。(The program is mainly used for the measurement of pulse width signal,and has good stability and accuracy. )

本材料是Visual Basic 6.0 中文版程序员指南，有兴趣的可以下载看看(This material is the Chinese version of Visual Basic 6.0 Programmer' s Guide, are interested can download to see)

stm8单片机实现了控制bldc轮毂电机的控制，用了6个mos管，采用六部控制，里面有 pcb sch 和程序，可以用此资料改装成电动自平衡独轮车(Stm8 microcontroller realized control BLDC hub motor control, with 6 mos tube, using six control with Sch and PCB program, this information is converted into electric self balancing unicycle)

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)

说明：  内有电路图和对应的程序，已经调试成功，能实现定时功能。(There are circuit diagrams and the corresponding procedures are debugging success, to achieve timing.)