基于at89c51snd1c的硬盘MP3播放器

51的4*4键盘驱动当按键按下时返回一个值，且只在按下键时返回一次该值，之后返回0；无按键时返回0；包含消抖功能，在键盘的下降沿触发。 基于keil平台-51 4* 4 keyboard driver when the button is depressed to return a value, and press the button only once the value to return, followed by return 0 no keys to return 0 contains extinction Buffeting function, the falling edge trigger at the keyboard. Keil-based platform

DS1302的应用程序,只是基本功能.要是开发出强大的,也请上传大家分享-DS1302 applications, only basic features. If the development of a strong, please upload to share

pid控制的源程序，很不错的，请大家注意关注啊-pid control source, it is good, draw attention to concerns ah

66PP22A单片机dtmf解码程序,用于DTMF通讯 软解码方式-66PP22A SCM DTMF decoder procedures for communications DTMF decoder soft approach

用C语言实现的1602液晶显示程序，程序已经调试好了-Using C language program of the 1602 liquid crystal display, the program has good debugging

485端口抄表程序，通过485端口进行电表抄写-485-port meter-reading program, through the 485 meter port copying

单片机串口通讯源程序，具体功能经过测试，请大家-microcontroller serial communication program, the specific function of the test, please s

基于ST7902驱动的12864LCD显示汉字、图片，显示自己做的字库汉字-ST7902-driven based on 12864LCD display Chinese characters, pictures, show the character of their own characters

从虚拟终端输入8个任意数据，通过串口传送给单片机的led_buf缓冲区，并在8个led上显示；按回车键对led_buf缓冲区中的数据进行由小到大排序，排序结果在led上显示。-From the virtual terminal eight arbitrary input data, through the serial port send buffer led_buf MCU and 8 led display led_buf press Enter to buffer the data from small to big sort, to sort the results in the led display.

W3100是WIZnet公司专门为以太网互联和嵌入式设备推出的硬件TCP／IP协议栈芯片，其硬件TCP／IP协议栈包含了TCP、UDP、IP、ARP和ICMP协议，这是sever例子源码-WIZnet W3100 is designed for the Internet and Embedded Ethernet equipment introduced hardware TCP/IP protocol stack chips, and hardware TCP/IP protocol stack includes TCP, UDP, IP, ICMP and ARP agreement sever example of this is FOSS