温度传感器DS18B20测温+显示+键盘，里面包括KEIL文件和PROTEUS仿真文件-Temperature sensor DS18B20 temperature+ Display+ Keyboard, which includes documents and PROTEUS simulation KEIL document

st7565驱动LCD12864源代码以及经调试通过的LCD测试程序-st7565-driven debugging LCD12864 source code, and adopted by the LCD test program

一个用PIC16F716编写的风力发电机的控制器程序，具有很高的实用价值-PIC16F716 with the preparation of a wind turbine controller procedures, with high practical value

免费开源实时RTOS--FreeRTOSV5.0.3源代码-Free open-source real-time RTOS- FreeRTOSV5.0.3 source code

温度传感DB18B20七段显示实验

本人设计的用802051实现的键盘程序的识别代码。系统采用定时查询，防抖。如果监测到你一个代码，系统将键盘码输出。然后给我你个中断，用于提示中心机，读取键码。支持长按。-I designed keyboard with 802,051 procedures to achieve the identification code. System uses a regular query, Anti-Shake. If the monitoring to you a code, the system will output the keyboard code. And then give me interrupt you for the prompt Center machine, read the key code. Support the long press.

c51的资料主要在单片机中的应用，是很好的工作手册-information mainly in the C51 single-chip application, is a good manual

LCD1602＋DS1302+DS18B20多功能电子钟综合实验-LCD1602+ DS1302+ DS18B20 multi-clock comprehensive experiment

支持SD卡的MP3电路图,powerpcb4.0格式.使用AVR单片机-support the SD card MP3 circuit diagrams powerpcb4.0 format. Use AVR

由8051组成的单片机系统通常情况下，P0口分时复用作为地址、数据总线，P2口提供A15-A8即高8位地址，P3口用作第二功能，只有P1口通常用作I/0口。P1口是8位准双向口，它的每一位都可独立地定义为输入或输出，因此既可作为8位的并行I/O口，也可作为8位的输入输出端。当工作在输入方式时，对应位的锁存器必须先置1,才能正确地读到引脚上的信号,否则,执行读引脚指令时,若对应位的锁存器的值为0，读的结果永远为0。-By 8051, composed of single-chip microcomputer system under normal circumstances, P0 timeshare I reuse as address, data bus, P2 I provide A15-A8 high eight address, P3 mouth for the second function, I usually only P1 for I/0 I. P1 I was eight quasi-two-way port, it can be independent of each and every defined as input or output, it can be used as 8-bit parallel I/O port, can also be used as 8-bit input and output side. When the work in the input, the corresponding bit latch must first buy one in order to correctly read the signal pin, or pin the implementation of reading instruction, if the corresponding bit latch the value of 0, Reading the results of Forever to 0.