weeks meritorious DP51 plate test procedures

会议计时器，以MCS51单片机为核心，实现会议演讲定时提醒功能，可以进行设定时间，倒计时，暂停，蜂鸣器提醒或灯光提醒等功能-Session timer to MCS51 single-chip microcomputer as the core, the realization of the meeting from time to time to remind the function of speech, you can set time, the countdown, suspension, or a buzzer to remind lighting functions to remind

基于单片机的数字灵敏电子钟设计，准确的实现时，分，秒显示-Based on the number of sensitive electronic clock microcontroller design, an accurate realization of hours, minutes, seconds displayed

单片机最小系统，两位LED数码管由串口输出接两个164驱动，Lout,Rout为左右声道输出，SET， ALT0， ALT1为三个按键，也可自己在开始的I/O定义改成你想用的I/O口；12M晶振，若用89C51则只可装下约14首歌曲，用89C52则可装下近40曲-The smallest single-chip system, the two LED digital tube by the serial output driver 164 then two, Lout, Rout output for the left and right channels, SET, ALT0, ALT1 three buttons can also be their own at the beginning of the I/O definition change you want to use the I/O port 12M crystal, if one uses a 89C51 only loaded about 14 songs can be loaded with 89C52 under near 40

ad转换,可以实现模拟量转换成数字量，利用单片机内部集成的魔术转化单元。-ad conversion

8051-step motor-..........................................

NES可以说是现下最老的游戏了，任天堂的经典游戏，这些年随着手机游戏的流行，NES游戏重新粉墨登场！-NES can be said that holds many lessons for the oldest games, and Nintendo" s classic games, all these years with the popularity of mobile games, NES game back on stage!

条码读入CPU 1. 与条码读入器的通讯 1.1 采用标准的UART通讯协议，波特率为9600，没有校验位，一个停止位。 1.2 通讯的过程是单工的，数据流总是从条码读入器到CPU。 1.3 正常的数据传送总是以一个换行符开始，六个数字，以一个回车符结束。 -51

51单片机实用子程序库，含有详尽的单片机资源调用子程序-51 single-chip utility subroutine library, which contains detailed subroutine calls single-chip resources

多种A/D转换芯片在MCU应用中的驱动程序，C语言原代码-multiple A/D converter chip MCU application of the driver, the original C language code

基于AVR单片机的机械旋转时钟，将机械和电子完美的结合，具有一定的艺术性，做好后放在家里可以当艺术品-Based on AVR microcontroller mechanical rotary clock, would be the perfect combination of mechanical and electronic, has a certain artistic quality, do a good job at home can be as works of art after