单片机 原理图 protel画的 初学者可用来制作实验板 省钱哦

功能： 1、作为主机通讯采集两路下位机数据并将此数据通过8255送出（十路水位值） 并计算水头送STC板 2、采集数据为BCD码制，先转换成二进制，处理后再转换成BCD 3、通讯采用方式3，多机通讯，上位机发地址时TB8=1，其他TB8=0 下位机SM2=1，RB8=1时产生中断后使SM2=0收发数据，结束后SM2=1 在此系统中本机硬件地址要设为0-Features: 1, as the host of two-way communication acquisition of data-bit machine and send this data through 8255 (the road level 10 value) and calculate the head sent to STC board 2, for BCD code data collection system, the first converted into binary, and then deal with the conversion into BCD 3, communication using methods 3, multi-machine communications, address PC made TB8 = 1, other TB8 = 0 under the digital machine SM2 = 1, RB8 = 1 when the failure to make SM2 = 0 to send and receive data, after the end of SM2 = 1 in this system to the local hardware address set to 0

AD0809做的电压表 有这方面需要的可以参考参考-AD0809

自己的一个320*240的液晶屏（1335控制器）的驱动，用keil C51写的-own a 320 x 240 LCD screen (1335 controller) driver, c51 C51 was made with the

用12C887制作的电子时钟,用89C51单片机读取并显示.-12C887 produced with electronic clock 89C51 single-chip reader and displayed.

24c02的c51程序-24c02 procedures

一个液晶显示器TX240128程序。我把我小孩的相片做在上面了，如果你用51的片子就能调试你的显示器了。端口连接在程序中有定义。你看下就知道了哈！-A liquid crystal display TX240128 procedures. I put my kids to do in the photo above, if you use the 51 films will be able to debug your display has. Port in the procedure definition. You know facie Ha!

实现交流220V市电的定时开关，可编程修改各参数，特殊情况下可强行开关。主要用于控制自助打印机系统。-AC 220V City realize the timer switch, programmable modify the parameters, special circumstances may be forced switch. Mainly used to control the printer self-help system.

步进电机步距角细分单片机控制系统设计与研究-stepper motor breakdown step angle SCM Control System Design and Research

1.The content is too simple 2.Is not a sourcecode or document 3.lost some files 4.Description is not detailed or not correct 5.Compressed file has password 6.Sourcecode duplicate or already exist

CC1100的编程指导，对于使用CC1100的程序员们很有帮助。-CC1100 programming guide, for programmers to use the CC1100 helpful.