with high accuracy microprocessor PWM 12 DA, the Internet and practical.

AVR单片机入门及C语言高效设计实践（四） ATMEAG16L的I／O端口特点及使用 ATMEAG16L单片机有32个通用I／O口，分为PA、PB、PC和PD四组，每组都是8位。这些I／O口都可以通过各自的端口寄存器设置成输入和输出（即作为普通端口使用），有些I／O口还具有第二功能（我们在后面使用到这些第二功能时再介绍）。-AVR C language portal and efficient design practice (4) ATMEAG16L the I/O Ports characteristics and use of a microcontroller ATMEAG16L 32 common I/O mouth into PA, PB, PC and PD four groups, each group are eight. These I/O I can through their respective ports Register set to input and output (that is, use as a general port), Some I/O I also have the second function (in the back of the use of these second function tell).

电话机的工作原理,有振铃电路,电话极性保护电路,还有双音多频发送接收电路-Telephone the working principle, has ringing circuit, Phone polarity protection circuit, as well as send DTMF receiver circuit

电机调速的控制程序，你可以通过这个程序来设定参数，通过反馈就可以控制速度了啊！-of motor speed control procedures, you can use this procedure to set parameters, feedback can control the pace of their ah!

AVRMEGA16的PWM运用,用于一种电机控制,已在CV上调试,可以运用-PWM

51单片机在lcd上实现zlg gui,希望好的请多加点分数-51 in lcd to achieve single-chip zlg gui, I hope more good points scores, please

该源代码为单片机的火车时刻表课程设计源代码，需要课程设计报告的，再找我。-The source code for the MCU train schedules curriculum design source code, the need for curriculum design report, I find.

基于80C51单片机源码公开的Small RTOS 1.12.1版-80C51 microcontroller based on the open source version 1.12.1 Small RTOS

Keil C Proteus 联合仿真的VDM51_dll文件.rar-Keil C Proteus 联合仿真的VDM51_dll文件.rar

一个单片机课本的教案别且还有上课的课件，对于想自学的朋友有很大帮助！-A microcontroller textbooks and lesson plans do not have class courseware, a friend who want to self-helps a lot!

主要用到了PID算法控制温度,显示采用动态扫描.输出可调节占空比的脉冲控制加热器-mainly used to control the temperature PID algorithm, shows that using dynamic scanning. Output adjustable pulse duty cycle control of the heater