AVR Protel libraries

at89c2051制作的超声波测距源程序，经本人检测程序无误，测距精度在10CM以内-AT89C2051 Ultrasonic Ranging source produced by the testing procedures I correct location accuracy within 10CM

功能强大的51编程器，文件包里有PC机程序、编程程序和硬件电路。-powerful 51 programmer, a paper bag of PC and programming procedures and hardware circuit.

winavr开发环境下的一段pwm测试程序，可精确控制led的亮度。-winavr development environment section pwm test procedure can accurately control the led brightness.

电风扇，带遥控功能，可通过遥控实现转头，换档等功能。-μ?? ?????? ?? ??

该程序是将18B20测得的温度值经单片机处理后在数码管上显示，比较适合单片机初学者使用。-The program is 18B20 measured temperature value has been processed in the digital control microcomputer displays are more suitable for beginners to use microcontroller.

12864液晶显示驱动的一个合集，主要是51系列单片机的液晶驱动程序！-12864 liquid crystal display driver of a collection, mainly 51 series single-chip LCD driver!

1） 以单片机为核心部件组成一个音乐播放器。 2） 利用单片机的定时器产生乐谱的各种频率方波，信号经过放大后由喇叭发出声音。 3） 自行定义按键盘，每按一键，可选择一首歌曲进行演奏，某段音乐令单片机连续播放，演奏可通过按键来中断。 4） 在LCD上显示演奏歌曲的名称。 -1) the composition of the core components of SCM as a music player. 2) the use of MCU timer generated scores of the various frequency square wave signal through the amplified sound from the speakers. 3) self-defined keyboard, every click of a button, select a song to play, a certain period of continuous playback of music in SCM, playing by pressing a button to interrupt. 4) In the LCD displays the name of the song playing.

以上是一些简单的单片机入门教程， 希望可以对刚学单片机的朋友有点帮助-These are some simple single-chip Tutorial, hope that we can just learn a little bit to help a friend SCM

汽车中控门锁资料和电路图图纸比较详细，第二部，是单独的文件-Car door lock control circuit information and more detailed drawings, the second is a separate document

此为AD转换器ADC0809的资料-this AD converter for the ADC0809