AT89C2051单片机与PC机的RS232通讯接口子程序，实现管理科学。

RT12864-3M液晶图片显示程序，汇编编写的-RT12864-3M LCD picture display program, a compilation prepared by

使用c51单片机制作的气象五要素采集程序 包括DS1302温度以及TLC2543、24c04，键盘 240*320液晶模块！-use c51 SCM produced five elements of the meteorological collection procedures include DS1302 temperature and TLC2 543,24 c04, keyboard 240* 320 LCD module!

一种无线传感器网络CSMA协议的设计与实现-csma

单片机闪烁灯的设计 和源码 单片机初学者的草考资料，要学好单片机的必由之路！-Single-chip flashing light source single-chip design and test information on the grass for beginners to learn the only way for single-chip!

本程序是AD MAX197驱动程序。精度高。-This procedure is AD MAX197 driver. High accuracy.

cypress的 fx2-Vend_ax-fx2 the cypress-Vend_ax

LM24064D液晶显示屏.-LM24064D LCD display.

这是一个比较典型的PID处理程序，在使用单片机作为控制cpu时，请稍作简化，具体的PID 参数必须由具体对象通过实验确定。由于单片机的处理速度和ram资源的限制，一般不采用浮点数运算，而将所有参数全部用整数，运算 到最后再除以一个2的N次方数据（相当于移位），作类似定点数运算，可大大提高运算速度，根据控制精度的不同要求，当精度要求很 高时，注意保留移位引起的“余数”，做好余数补偿。这个程序只是一般常用pid算法的基本架构，没有包含输入输出处理部分。-This is a typical PID process, as in the use of SCM control cpu, please slightly simplified, specific PID parameters to be specific targets identified by experiments. As SCM processing speed and ram resource constraints, generally do not use floating-point operations, and will use all the parameters of all integers, and the final calculations to divide one of the Nth 2 data (the equivalent displacement), will count for a similar operation, it will greatly increase the computing speed, control Accuracy of different requirements and high precision, displacement caused reservations to the attention of the "I", which I do several compensation. This procedure is commonly used algorithm pid the basic structure does not include input and output processing.

KEIL C51使用方法的介绍!非常详细,非常实用-KEIL C51 using the method of introduction! Very detailed, very useful

4*4矩阵键盘（查表法） （C51环境）-4* 4 matrix keyboard (look-up table) (C51 environment)