串行DA MAX517测试程序,测试通过，用示波器观察输出3.88V电压。...

51单片机的at89c51 的资料信息，可以进一步了解其用法-AT89C51 MCU 51 of the information, you can learn more about its usage

89S52 单片机 + 74HC595 + 组成的8X8 LED 点阵驱动显示程序，Keil C环境编写，带显示字符压缩／解压源／显示／代码。-89S52 composed of lattice-driven 8X8 LED display program, Keil C environment preparation, showed a band of characters compression/decompression source/Display/code.

单片机控制键盘和led，键盘送入的数据在led 上显示，数据满四位后，键入的第5位数据在个位显示，前四位清零。-MCU control the keyboard and led, keyboard into the data led the show, data-4, Type the first five places in the data revealed that four former reset.

51单片机与MAX 7219连接，可一次性驱动8位数码管，绝对正确-MAX 7219 with 51 single-chip connections can be a one-time 8-bit digital tube-driven, absolutely right

51单片机各类源程序集锦，含有好多常见的单片机程序，学习的好资料。-51 Single-chip Collection of all types of source, contains a lot of common single-chip process, learning good information.

在单片机控制的液晶屏上显示汉字，uVision开发平台。-In single-chip microcomputer controlled LCD screen display of Chinese characters, uVision development platform.

i2c通讯C程序源代码,经测试合格,可以放心使用,请注意时钟周期-i2c communication C program source code, have been tested and qualified, you can rest assured that the use of, please note that clock cycle

这是本人在网络上收集的GPRS开发资料，希望对那位朋友有用。-This is my collection of GPRS on the network development of the information to friends who want to be useful.

洗衣机控制５１原程序，可直接使用，代码简单-51 washing machines control the original procedures, could be used directly, the code simple

基于PIC16F877A的DS18B20一线总线多路测温系统（采用Proteus模拟）。 Proteus模拟电路图＋PIC C语言源程序（MPLAB V8.00） 这可不是用多I/O模拟的多路测温哦！看系统功能： 1）、由一线数据线寄生供电，采用MOSFET强上拉给DQ供电； 2）、上电自动搜索可用的传感器并做CRC校验（实现了Search ROM命令）； 3）、 报警下限可选择； 4）、轮询显示温度，通过LCD1602输出； 5）、 传感器中途拔出或温度越界均报警； 6）、 采用声光报警方式，可做为温度控制信号标志。 -PIC16F877A-based multi-channel bus of DS18B20 line temperature measurement system (using the Proteus simulation). Proteus analog circuit+ PIC C language source code (MPLAB V8.00) This is not using multiple I/O simulation of multi-channel temperature measurement Oh! See system functions: 1) by the parasitic power line data line, using MOSFET strong pull-up power supply to the DQ 2), power-on automatically search for available sensors and do CRC check (to achieve a Search ROM command) 3) alarm limit choice 4), polling shows the temperature, through the LCD1602 output 5), half-way pulled out or the temperature sensors are all cross-border police 6), using sound and light alarm mode can be used as the