Shell

利用ULN2003A进行驱动，产生PWM波，里边有照片，可供参考，通过本例程了解PWM 的基本原理和使用 (#include <reg52.h> unsigned char timer1 sbit PWM=P1^2 void system_Ini() { TMOD|= 0x11 //PWM TH1 = 0xfe //11.0592 TL1 = 0x33 TR1 = 1 IE =0x8A } main() { system_Ini() while(1) { if(timer1>100) timer1=0 if(timer1<30) PWM=0 else PWM=1 } )

wincap以太网用的,proteus仿真以太网时用(wincap Ethernet use, when to use proteus simulation Ethernet)

说明：  单片机各种实验教程，内置源代码硬件连接等具体步骤适合初学者(ge zhong yuan ma he daimai shi dan pianji d chang)

公交自动报站系统的设计，需要用到语音芯片，还有显示器，用单片机设计，protues进行仿真(Automatic stop system bus design, the need to use voice chip, as well as monitors, MCU design, protues simulation)

详细介绍了CAN总线OAL层驱动编写方法，对于初学者很有价值！(details of the CAN Bus Drivers qualify layer preparation methods for beginners great value!)

2015年电赛频率计，精密度高，简单易实现，双通道实现捕获(2015 frequency race frequency meter, high precision, easy to implement, dual channel capture)

125KHZ ID 卡资料，射频卡__读卡器_原理图.pdf(rfid 125KHZ ID card reader RFID schematics. Pdf)

基于单片机的便携式高度计系统，可移植性高。(Microcontroller-based portable altimeter system, portable high.)

PM2.5激光传感器模块SDS系列使用手册(Handbook of SDS Series for PM2.5 Laser Sensor Module)

ST7565是一款点阵液晶驱动芯片，它具有并行与串行（SPI）两种接口.(ST7565 is a dot matrix LCD driver chip, it has the parallel and serial interface (SPI) two.)