单片机计时仪器，不错的参考程序。接口可以自行修改即可

IO口模拟串口发送，可用于双串口，可被其他程序调用 void rs2_send_byte(uchar cByte) 向串口发送一个字节-Send serial port analog IO, can be used for dual-serial port, other procedures can be called void rs2_send_byte (uchar cByte) sends a byte to the serial port

PWM Keil C51 零耗时低频宽脉冲软PWM信号控制Keil C51演示程序-PWM Keil C51 zero time-consuming and low-bandwidth pulse soft PWM signal control Keil C51 demo program

24C01A的读写程序,有须要的朋友可以拿去用用.-24C01A process of reading and writing, it is necessary to be taken by friends to use.

C语言的KEY4X4的矩阵键盘,已经调试成功.可以很便移植,是本人自己写的.-C language KEY4X4 matrix keyboard, has been successful debugging. Can be transplanted, it is I wrote it myself.

这个是单片机多路数据采集的控制程序。并可以同时多路输出。-SCM is the multi-channel data acquisition control procedures. And can more output.

基于MC68HC908RF2芯片轮胎压力监测系统的发射程序，采用曼彻斯特编码，FSK，9600bps-MC68HC908RF2 chip-based tire pressure monitoring system for the launch procedures, the use of Manchester encoding, FSK, 9600bps

proteus经典著作,最全库文件,图形液晶模块驱动芯片-proteus classics, most complete library files, graphic LCD Module Driver IC

数字温度显示(带负温度),采用STC89C51单片机控制DS18B20-Digital temperature display (with negative temperature), the use of STC89C51 SCM DS18B20

单片微机原理及应用,MCS-51硬件结构-Single-chip Microcomputer Principle and Application, MCS-51 hardware structure