SD-card

此程序可实现长度为8位，周期为255的m序列，此序列可当做伪随机信号发生器，模拟信道噪声。(This procedure can achieve the length of 8 bits, the m sequence of 255 cycles, the sequence can be used as a pseudorandom signal generator, analog channel noise.)

说明：  本PDF文件为市电电压频率测量计的设计说明书！从中能了解相关的电路设计(The PDF file is mains voltage frequency meter design manual! From which to understand the relevant circuit design)

智能安防报警系统是集布防,检测,报警为一体的软硬件相结合智能化系统。(Intelligent security alarm system is a deployment, detection, alarm as one of the intelligent combination of hardware and software systems.)

PIC （PIC16F886） 做的简单频率计 用TMR0定时1s，将待测信号从T1CKI脚输入，用TMR1进行计数，读出TMR1H，TMR1L的值就是频率 单片机：PIC16F886 显示：LCD1602 编程语言：PIC C 附Proteus仿真。(PIC (PIC16F886) to do a simple frequency counter TMR0 timer with 1s, the test signal input pin from T1CKI with TMR1 count, read TMR1H, TMR1L value is the frequency of the microcontroller: PIC16F886 display: LCD1602 with Proteus simulation.)

ACR38智能读卡器测试用：芯片IC卡等(ACR38 Smart Card Reader test: IC card, etc.)

基于正点原子stm32的频谱 a1读取ad信号显示(Punctuality atomic spectrum based stm32 a1 read signal display ad)

红外通信装置 HSDL-7001PDF资料(Infrared communication device HSDL- 7001 PDF data )

ESP8266制作的安卓控制电风扇，内含详细电路即软件。手机APP使用非常简单。智能家居等设备控制均可类似实现(ESP8266 Android-controlled fan, fan after simple modification can be realized, containing detailed circuit software.Mobile APP is very simple.Smart home control can be similar to achieve)

说明：  30章51单片机入门教程，让你轻松学会单片机，不用老师，自学也能学会(30 Chapter 51 MCU introductory tutorial, allow you to easily learn the microcontroller without the teacher, can learn to self-)

汽车横、轨道衡,电子汽车衡技术协议说明文档资料(Automotive Wang, railroad track scale, electronic truck scale information technology agreement documentation)