PHILIPS非接触射频卡RC500的开发技术资料,

超声测距c语言程序 利用定时器产生40khz站空比50 的方波 通过检测收到超声波的时间来测距-Ultrasonic Ranging c language program generated using the timer 40khz space station more than 50 of the square wave by detecting the time to receive the ultrasonic ranging

SD卡的简单介绍，包括SD卡的分类，协议，脚位定义等。-SD card, a brief introduction, including the SD card classification, protocol, pin definitions.

单片机编程，C51 4个例程(8425)，适合初学者。-microcontroller programming, C51 four routines (8425), suitable for beginners.

好东西，QT1106芯片触摸按键C源程序 该芯片将触摸滑动条或滚轮与7个附加按键集成在一起。按键程序-Touch-chip key C program

51单片机写的液晶显示程序（1602），调通的，供初学者参考-51 Single-chip LCD written procedures (1602), tune

128*64LCD功能程序（原创）-128* Embedded function (original)

单片机C51的应用,高精度实时时钟－SD2001驱动程序的源码 -C51 microcontroller applications, high-precision real-time clock-SD2001 driver source code

简单的入门例程，初学者的必看。。。。。。关于51单片机的C语言开发-Introduction to simple routine, the must-see for beginners

这是一个基于P89c51单片机的声音与显示C51程序--A P89C51-SCM-based C51 program for sound and display.

12864显示程序（EE21学习板演示程序） -12864 display program (EE21 learning demo board)