This is a very good key scan circuit and display control programs and

* 功能：运行RTC进行计时，将所时间值不断的通过串口向上位机发送，并把秒的值输出数码管D1 * 上显示。上位机运行EasyARM软件，在串口发送/接收窗口观察。 * 说明：* 通讯波特率115200，8位数据位，1位停止位，无奇偶校验。-* Function: RTC to run for a time, the time value will be constant upward through the serial-bit machine to send, and seconds values D1* output digital tube display. PC running EasyARM software serial port to send/receive window of observation.* Description:* 115200,8 bit baud rate of communication data bits, 1 stop bit, no parity.

AVR ATmega16 ds18b20 驱动程序，编译环境 ICCAVR6.31A 功能函数需要自己写移植代码-AVR ATmega16 ds18b20 driver, the compiler environment ICCAVR6.31A function needs its own code to write transplantation

自制干手机，含电路图（DDB），使用说明以及汇编源程序-Self-made hand dryers, including circuit diagrams (DDB), for use as well as the compilation of source code

Microchip PIC18F 设备驱动代码 I2C部分-device driver code I2C part

最高实时取样率2M点/秒，精度8Bit 取样缓冲器深度：256字节 模拟频带宽度 0 - 1MHz 垂直灵敏度100mV/Div - 5V/Div (按1-2-5 方式递进)-2M real-time sampling rate of the highest points/sec, accuracy of sampling 8Bit buffer depth: 256 bytes bandwidth analog 0- 1MHz vertical sensitivity 100mV/Div- 5V/Div (by way of progressive 1-2-5)

I2C接口的ADC应用PCF8591，c51原代码。编译通过。-I2C Interface Converters application PCF8591 which, c51 original code. Compile.

这是一个对proteus的介绍的pdf文件，对入门级人物是个很好的帮助-Proteus This is a pdf file of the presentation of the entry-level people is a very good help

基于AT89C52的单片机4X4键盘原理图，可用于小系统板-Based on AT89C52 microcontroller 4X4 keyboard schematics, can be used for a small system board

笔段式lcd显示子程序，c语言编写-T-piece lcd display

串口扩展LED时钟子程序，不含时间设定，可直接嵌入串口LED显示系统中-Serial LED clock subroutine expansion, excluding the time settings, can be directly embedded in the serial LED display system