实例01、GPIO实验－熟悉开发环境，以及程序下载和调试

pic16f877实现spi功能和isd1790语音芯片的通信-pic16f877realise spi function和isd1790sound chip comunitions

51单片机矩阵键盘的设计与调试，建议使用52单片机。-51 Single-chip design of the keyboard matrix and debugging, it is recommended to use single-chip microcomputer 52.

飞利浦高性能单片机IIC总线通用通信协议-Philips high-performance general-purpose single-chip IIC bus communication protocol

TM8211演示程序 单片机 STC12C5A32AD 晶振 33MHZ 一分频速度快T=1/33=30ns-TM8211 demo program microcontroller STC12C5A32AD Crystal 33MHZ one-way speed T = 1/33 = 30ns

atmega16开发板、Proteus、原理图-ATmega16 development board, Proteus, schematic diagram

T9输入法， 可 以用在手机或者单片机系统中需要显示汉字的场合，节省键盘数，--T9 Chinese input method. It could be used in mobile phone or SCM systems which need to show Chinese characters.

51系列单片机的温度传感器项目代码，经过项目验证可以直接放心使用，用c写成-51 microcontroller series of temperature sensors item code can be verified through direct projects to worry about, written with c

这个源码是在电源上电过程中的处理程序，在单片机上电过程中需要有很多步骤去处理，供大家参考讨论-This source code is in the power supply in the course of treatment procedures, the single-chip power and the need to have a lot of steps to deal with, for reference to discuss

周立功公司推广的一个小型实时嵌入式操作系统，适合在51或AVR等单片机上使用。压缩包里包括系统源代码和一个在51下移植的例子。在KEILC51下开发-weeks meritorious promotion company of a small real-time embedded operating system, for the other 51 or AVR microcontroller use. Compression bundle including system source code and the next one in 51 transplant examples. Under development in KEILC51

实现MODBUS RTU的完整代码，做MODBUS RTU网关的很实用。-MODBUS RTU SOUCE CODE