c

刚才上传的频率计程序可能不太好，现在这个计数外部脉冲的程序，还是较好的，只是得自己从中截取出来(Just upload the program may not be a good frequency counter, and now this external pulse count procedures, or better, just get yourself out from the interception of)

与沉默的开关为iOS，精选ios编程学习源码，很好的参考资料。(And the silence of the switch is iOS, select learning IOS programming source code, a good reference.)

nRF905接收程序,可与k60连接进行无线通信(RF905 receiving program can communicate wirelessly connect with k60)

51单片机动态数码管显示开发程序，对单片机初学者有一定的参考指导作用，欢迎下载参考研究，谢谢！(51 single-chip dynamic digital display development program, microcontroller beginners have a certain role in guiding, are welcome to download the reference study, thank you!)

STM32F107的单片机，针对红外遥控解码，我们已经使用过(STM32F107 infrared remote control code)

51单片机的一些例程，包括led、数码管、点阵、sd等等(51 examples)

说明：  用mcs-52系列单片机实现等精度频率测量，T1引脚接被测TTL信号，晶振22.1184MHz，对任何频率都可以实现很高精度的测量（精度<1 )，结果从串口字符串输出，波特率115200，可以用串口调试器观察结果.(With mcs-52 family of single chip and other precision frequency measurement, T1 pin then measured TTL signal, Crystal 22.1184MHz, any frequency can be achieved very high accuracy of measurement (precision<1 ), the result string from the serial output , baud rate 115200, serial debugger can observe the results.)

说明：  基于51单片机红外遥控智能小车（原理图、PCB、遥控器控制程序、实物图）(ntelligent car based on 51 microcontroller infrared remote control (schematic diagram, PCB, remote control program, physical map).)

利用PID算法控制PWM输出电压，实现串联型数控电源，通过键盘输入控制期望电压(PID algorithm to control the use of PWM output voltage to achieve tandem CNC power, through the keyboard input control voltage expectations)

基于两个STM32板之间的CAN通信，包含完整程序(Based on two STM32 plate between the CAN communication)