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51单片机，利用扬声器产生救护车声音的效果。-51 Single-chip, using loudspeakers produce sound effects of the ambulance.

ucos-11在51上的移植-CENTER-11 of the 51 transplant

自已制的51开发板上的源代码A，里面有16x16点阵,1602+1302+18b20,adc0804演示,AT24C02EEPROM,dac0832演示,ds1302+lcd12864+1802,ds1302数字钟（lcd1602）,ds1302数字钟（led）等代码。-51 developed their own system on-board source code A, which has 16x16 dot matrix, 1602+ 1302+ 18b20, adc0804 demo, AT24C02EEPROM, dac0832 demo, ds1302+ Lcd12864+ 1802, ds1302 digital clock (lcd1602), ds1302 digital clock (led ), etc. code.

PIC单片机与LCD1602的汇编程序。可以直接使用。里面PIC16和PIC18两种，注意分辨。-PIC MCU and the assembler LCD1602. Can be used directly. Inside the PIC16 and PIC18 two, pay attention to distinguish.

一个C语言编写的单片机控制外部灯的代码-a C language prepared by the external lights SCM control code

MSP430和GPS的接口程序，通过MSP430的串口接收GPS发出的数据-MSP430 and the GPS interface procedure for the adoption of the MSP430 serial GPS receiver data issued

采用Maxim公司的Max267芯片实现的滤波电路 欢迎下载-using Maxim"s Max267 chip welcome the filter circuit download

MSP430与GPRS短消息收发例程，短消息服务中心号码。-MSP430 SMS and GPRS transceiver routines, short message service center number.

六位电子密码锁 采用89s52（51，52都可），4*4键盘，六个数码管，74ls04（位选），573（8D锁存器）。 说明：P2---数据（接573）―――（接数码管） P1---位选 ---（按74ls04） P0--4*4键盘 密码一次性设置（编程时写入的） 电路简单，此源程序仅供初学者学习，可自行扩展密码模块（加24C02）。 编绎软件为wave -six electronic password lock used 89s52 (can be 51, 52), 4* 4 keyboard, six digital control, 74ls04 (EC), 573 (8D latches). Note : P2-- Data (573 )---( access digital access control) P1 Choice------ (74ls04 ) P0-- 4* 4 keyboard set up a one-time password (into programming) circuit is simple, This program is for beginners learning will be able to expand password module (CO2 plus 24). Sounds series software wave

电子密码锁资料，包括设计方案，程序等相关资料。-Electronic locks, including the design of programs, procedures and other relevant information.