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。...

keilC51编写的，配合单片机AT89C51的液晶模块PG12864的驱动显示程序！-keilC51 prepared with AT89C51 single-chip LCD driver module PG12864 display program!

高速PCB设计资料，很好的东西，推荐下载-High-speed PCB design data, very good things, recommended download

关于GPS和c8051f系列的一个新思路 希望对大家有用 多多指教多多交流-On the GPS and c8051f series of a new idea we want to encourage more exchanges between useful to the exhibitions

单片机的USB、232输出口的电路图-USB MCU, 232 outputs of the circuit

关于msp430F21xx各个模块的代码，完全可以放心大胆的用-About msp430F21xx each module code, can rest assured that with the bold

本文档提供了用C语言写的单片机滤波算法，因为单片机尽管不擅长实现算法和进行复杂的运算，但在一些特定的场合，如实时动态测量等应用上还是要实现一定的滤波算法。-This document provides the use of C language written in single-chip filtering algorithm, because the realization of single-chip, while not good at algorithms and complex calculations, but in some specific occasions, such as real-time dynamic measurement applications or to achieve a certain degree of filtering algorithm.

555编程器，用于单片机编程使用，可以用一用就知道有没有！-555 programmer, programming for the use of SCM can be used on a not know!

基于C8051F340的AD转换和1602液晶显示的测试小程序-Based on the C8051F340 of AD conversion and 1602 LCD test applet

我用单片机8952和电压比较器339做了一个简单的电容容量测量表，参数大 致如下： 电容测量范围为1pF-9999.99uF，最小分辨力为1pF。分为5个量程，可以自 动切换量程，也可手动切换。 另外，有简单的频率计功能，能测量0-60MHz的数字信号频率（TTL电平）； 还可以产生几个单点频率的方波信号（比如1KHz）。 采用1602LCD作为显示器；4个按键控制；使用24C01保存当前设置值，不用 每次开机重新设置。可单5V供电，也可9V交流供电 -I used the single-chip 8952 and the voltage comparator 339 to do a simple capacitance measurement table, parameters are as follows: capacitance measurement range 1pF-9999.99uF, the minimum resolution for the 1pF. Divided into five ranges, you can automatically switch range can also be manually switched. In addition, a simple frequency meter function, capable of measuring 0-60MHz frequency digital signal (TTL level) can also lead to several single-point-frequency square-wave signal (for example, 1KHz). 1602LCD used as a monitor 4 button control use 24C01 to preserve the current settings, do not reset each boot. Can be a single 5V power supply, 9V AC power supply can also be

protel元器件TQFP-44封装。做好的封装，可以直接用于PCB的绘制！-protel components TQFP-44 package. Do a good job of packaging, can be directly used for PCB drawing!