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基于zigbee技术CC2530 开发控制步进电机(Development and Control of Stepping Motor Based on Zigbee Technology CC2530)

三相电流表源程序 基于CS5460a 485通讯 遵循mudbus协议 测试成功(Three-phase ammeter source based CS5460a 485 communications follow mudbus protocol test )

基于STM32的开关电源设计论文+开关电源原理图，其本质就是DC-DC设计。(STM32-based design of switching power supply switching power supply schematic thesis+, its essence is DC-DC design.)

说明：  主要讲解系统板的各硬件功能；下载方法，IAP 版本的仿真方法 KEIL 软件的安装 、驱动安装等等(It mainly explains the hardware functions of the system board, Download methods and IAP version simulation methods Keil software installation, driver installation, etc)

这是一个基于C51的软件模拟串口程序，希望对大家有用。(This is a C51-based simulation software serial procedures in the hope that useful.)

C#写的ADSL拨号程序示例,ADSL自动拨号类,前提是在系统中已经有了一个宽带拨号连接(C# to write the ADSL dial-up procedures for example, ADSL automatic dial-up category, the premise that the system has made a broadband dial-up connection)

说明：  多路温度测试模拟,使用VB写的，只是模拟(Many way template test source)

用c语音编写的超声波测距的源代码，可以实现超声波测距的界面c语言编程(C speech prepared by ultrasonic distance of the source code, you can achieve ultrasonic distance c programming language interface)

说明：  freettos的最小系统移植，亲测能编译成功，使led灯周期闪烁(freertos ,stm32f103,keil5,c++)

说明：  pwm输出，能够实现随意改变占空比的pwm输出(PWM output, can achieve arbitrary change of duty cycle PWM output)