DA芯片TLC5620中文资料，该pdf以中文详细的讲述了TLC5620的各项指标及其典型应用电路...

1602 driver example

PDIUSBD12 USB1.1 C51源代码-PDIUSBD12 USB1.1 C51 source code

我们设计的火灾报警器，基本上满足要求，大家可以参考-We design fire alarm, and basically meet the requirements of everyone can refer to

用51系列单片机开发的电机驱动控制程序，控制方式采用PWM-51 Series single-chip with the development of motor drive control procedures, the use of PWM control

自动检测80C51 串行通讯中的波特率-automatic detection 80C51 Serial communication baud rate

在做项目（工程）的时候，我们经常要用到比较多的按键，而且IO 资源紧张， 于是我们就想方设法地在别的模块中节省IO 口，好不容易挤出一两个IO 口，却 发现仍然不够用，实在没办法了就添加一个IC 来扫键。一个IC 虽然价格不高， 但对于大批量生产而且产品利润低的厂家来说，这是一笔不菲的开支! 那，我们能不能想到比较好的扫键方法：用最少的IO 口，扫最多的键？可以吗？-Doing the project (engineering), we often use the relatively large number of keys, and the IO resource constraints, so we are trying to save in another module IO ports, finally out of one or two IO ports, only to find is still not enough there is really no other way to add an IC to sweep on the keys. Although the price of an IC is not high, but low profits, high-volume production and product manufacturers, this is spending a lot of money! That, we can not think of a better scan key method: with a minimum of IO ports, scan Most of the keys? OK?

从24c02中读出音乐来并播放音乐-From the 24C02 to read music and play music

DIY红外遥控家电，遥控家电的电源开关。方便实用。-DIY infrared remote control home appliances, home appliances remote control power switch. Convenient and practical.

用51单片机的PWM实现DA -PWM using 51 single chip realize DA

430 开发板原理图，实用简单适合初学者，适用于多种型号430-430 development board schematics, a simple utility for beginners, is fit for various models of 430