RS485 communication

ADC0809是带有8位A/D转换器、8路多路开关以及微处理机兼容的控制逻辑的CMOS组件。它是逐次逼近式A/D转换器，可以和单片机直接接口。 -ADC0809 is an 8-bit A/D converter, 8-way multi-switch and microprocessor compatible control logic of the CMOS components. It is a successive approximation type A/D converter, single chip can interface directly.

使用3310液晶---数字频率计 .-Use 3310 LCD- digital frequency meter.

随便玩玩,想下个东西,可是不让我下，上传了就可以下了么?

KEILC51使用技巧及实战 是一本关于Intel 80C51 以及广大的51 系列单片机的书这本书介绍给读者一些新的技术使你的8051 工程和开发过程变得简单请-KEILC51 skills and the use of combat is on an Intel 80C51 and a vast 51 Microcontroller series of books on this book to give readers some new technology to make your 8051 projects and the development process becomes simple request

基于avr,D12的U盘设计,有完整的USB1.1的协议代码.-Based on the avr, D12 U-disk design, have complete agreement USB1.1 code.

在ST单片机上实现GPS交通警示器功能.-In the ST to achieve single-chip GPS traffic alerts functionality.

51单片机的122×32点阵液晶底层驱动程序-51 SCM 122 × 32 dot matrix LCD driver bottom

经过一段时间的使用，上次的硬盘MP3播放器增加了USB下载文件功能； 汉字LCD显示功能；子文件夹功能等。并对软件做了一些修改。并将 硬件电路图画出来了。由于做得仓促，难免有不妥之处，请大家谅解， 欢迎指出错误。谢谢。-After a period of use, the last of the hard disk MP3 player, an increase of USB download files function characters LCD display Subfolders functions. And the software to do some modifications. Hardware circuit and the pictures came out. As a result of doing a rush, inevitably something wrong with the U.S. understanding, please welcome to point out the error.谢谢.

数码管驱动芯片用键盘驱动，有详细说明

本实验实现PS/2接口与RS-232接口的数据传输， PS/2键盘上按下按键，可以通过RS-232自动传送到主机的串口调试终端上（sscom32.exe）； 并在数据接收区显示接收到的字符。 串口调试终端的设置：波特率115200，一个停止位，无校验位。 -Realize this experiment, PS/2 interface with RS-232 data interface, PS/2 keyboard to press the button, through RS-232 automatic transmission to the host serial debug terminal (sscom32.exe) and data receiving display received characters. Serial debug terminal settings: 115200 baud rate, one stop bit, no parity bit.