自己写的1621驱动程序（绝对可以用的，针对NEC单片机的）

mifare rc500 读卡器源码-MIFARE reader source rc500

这是通讯接口实验《DA转换原理实验》的原理程序，适合于那些上嵌入式系统、通信、计算机专业的人-This is the communication interface experiment, "DA conversion principle experiment," the principle procedures, suitable for those on embedded systems, communications, computer specialists in the

PHILIPS LPC900 PWM CRTL 时间可调 -PHILIPS LPC900 time adjustable PWM CRTL

采用高发射功率红外光电二极管和高灵敏度光电晶体管组成。 光缝宽度（分辨率）有0.8mm、0.4mm两种。-High transmit power infrared photodiode and high-sensitivity phototransistor. Optical slit width (resolution) of 0.8mm, 0.4mm two kinds.

lcd 1602A 底层函数，方便使用。基本功能函数都已具备。-the underlying function lcd 1602

1602显示测试程序-1602 shows test procedures

关于16行64列的LED点阵，能够左右移动，程序简单易懂，希望大家来下载-16, line 64 on the LED dot-matrix, can move around, the program easy-to-read, I hope everyone to download

单片机串口中断程序和键盘程序-SCM interrupt procedures and procedures keyboard

c8051f020的fyd12864 c程序 keilc-C8051F020 s fyd12864 c procedures keilc

详细介绍picf87x系列单片机，其中主要包括内部结构等诸多信息-Detailed introduction picf87x Series Single-chip, which mainly include the internal structure and many other information