利用AVR单片机实现的慢速USB设备协议

基于89S52单片机的4位LED显示，定时程序，定时器初值可以在程序中修改。-89S52-based MCU four LED display, the regular procedures Initial timer in the process of change.

用定时器和控制端口,定时扫描,实现多种流水效果-With timer and control of ports, timing scan, to achieve a variety of water effects

在51单片机的P0口连接上LED，通过本程序对LED进行点亮、判断操作，来测试P0口的引脚。-Drive LEDs via P0 port of 51 MCU, to test prot 0.

电子条屏程序，可以实现滚动文字的显示，可以使单片机初学者掌握LED条屏的开发，希望对大家有用。-Article E-screen procedures, can be achieved scrolling text display that allows beginners to master single-chip LED screen be developed, in the hope that useful to everyone.

ISD4003的子程序,实现语音的录音与播放-ISD4003 of subroutines, voice recording and playback

ADI公司，型号为ADuC814的单片机的I2C总线通讯程序源码，含MASTER和SLAVE两种方式-ADI, model for the SCM ADuC814 I2C bus communication program source code, including the MASTER and SLAVE two ways

RS485通信程序，主机和从机都有了，现成的东西可以直接应用在你的开发中，PC程序用VB编写，485多机通讯是ASM的。-RS485 communication procedures, and from the host machine has a ready-made things can be directly used in your development, the PC using VB preparation procedures, more than 485 machine communication is the ASM.

用单片机不同的IO口驱动数码管，以解决IO口不是一个PO口的问题。-Microcontroller IO port with a different drive digital tube, to address the IO port is not a PO mouth problem.

1602 液晶 实现对立式键盘的操作 使用的是新华龙单片机 100脚 的 -Vertical LCD for 1602 to achieve the operation of the keyboard using a new single-chip 100-pin of Hualong

用ATmega8单片机产生占空比可变PWM方波-ATmega8 generated by single-chip PWM variable duty cycle square wave