基于at89c51snd1cMP3源程序

STM32FAD转换，单片机开发板，在实例中演示了AD转换过程。-STM32FAD conversion, microcontroller development board, in the instances demonstrate the AD conversion process.

本代码以8051单片机做的，实现对电子钟的功能。功能包括四按键对电子钟的时间及年月日的调整，6LED数码管显示时间。各部分功能以模块写出，便于以后调用，对于初学单片机的朋友们会有很大帮助。-The code to 8051 to do, to achieve the electronic clock function. Features include 4 buttons on the electronic form of time and date adjustment, 6LED digital tube display time. All parts of capabilities to the module to write, easy to call the future, for beginners SCM would be of great help to my friends.

C8051F020/1/2/3混合信号ISP FLASH微控制器数据手册（中文的哦）-C8051F020/1/2/3 Mixed-Signal ISP FLASH MCU Data Sheet (Chinese, Oh)

本原码功能是单片机接收和发送串口字符的例子，请参考-primitive code SCM function is to receive and send serial characters examples, please reference

利用8051单片机的定时系统进行年月日的显示-use of the 8051 regular system of the date indicated

LPC900 FLASH单片机DTMF发送演示实例-LPC900 FLASH examples of single-chip DTMF send demo

ATMEL的AVR单片机库文件-the ATMEL AVR libraries

ARM7 lpc2148通过DS18B20温度采集并通过1602显示-ARM7 lpc2148 through DS18B20 temperature acquisition and through 1602 show

MSP430 F149的单片机 键盘 便于相应计时器的操作-MSP430 F149 microcontroller keyboard to facilitate operation of the corresponding timer

急救车与交通灯）（1）南北与东西方向，每个方面由红黄绿三个灯控制（2）南北向：　红（30秒），黄（5秒），绿（25秒）　　　东西向： 红（35秒），黄（5秒），绿（25秒）　　　上述基本参数可以根据实际情况自行调整，灯的变化规律与实际路口规律相同，绿灯在最后5秒钟时，黄灯亮，然后红灯亮，不允许两个方面同时亮绿灯。（3）绿灯的时间显示在数码管上进行显示。（4）可以通过一个开关控制，当开关信号为0时，整个交通灯全灭提高要求：（1）设计一个紧急控制开关信号，当紧急开关信号为1时，两个方向的灯全为红灯。紧急开关撤消后，按照开关按下之前的状态继续运行（其参数要保存）。（2）设计一个夜间行车开关，当开关按下后，两个方向都只有黄灯闪烁，其它灯熄灭。（3）设计两个方向的亮时时间可调。-emergency vehicles and traffic lights) (1) North and South and east-west direction, each with three yellow-green from red lights control (2) to the north and south : red (30 seconds), yellow (5 seconds), Green (25 seconds) to things : red (35 seconds), yellow (5 seconds) Green (25 seconds) above basic parameters can be adjusted to the actual situation, the light changes with the actual law of the same intersection, the green light in the final five seconds, the yellow light is on, and then a red light, bright, not two fronts simultaneously bright green. (3) the green light at the time displayed on the digital display control. (4) can be controlled by a