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Useful modding - a spectrum analyzer + clock. We came across two 5x8 LED matrix, virtually occupying five-inch drive bay, and I decided to make a spectrum analyzer based on their sound.

4通道ad7682驱动程序 在msp430单片机上调试成功(4-channel ad7682 driver debugging success msp430 microcontroller)

说明：  点阵显示原代码，上传的为c语言，也有原理图。(Dot matrix display of the original code, upload the c language, but also schematic.)

PRINT PDF AT Adobe Reader 8

采用模糊聚类法，对变压器的故障诊断，并且分析各种气体含量。(The fuzzy clustering method, on the transformer fault diagnosis, and analysis of various gases.)

PCB800099 RTD2660h固件(PCB800099 RTD2660h)

lexical analysis of text detail program...

说明：  本系统以单片机AT89C51为主体,由芯片插座、独立按键、74HC573驱动8位数码管显示、5V直流电源控制模块等组成。根据数字集成芯片的引脚特性以及集成芯片的真值表编写检测程序。该系统能完成14脚以内常用TTL74系列数字集成芯片的功能测试。(This system is the main body of the single-chip microcomputer AT89C51, the chip socket, independent buttons, 74HC573 Driver 8 digital control, 5V DC power control module and so on. According to the characteristics of the digital chip and the chip s true value, the program is written in the chip.. The system can complete the functional test of the TTL74 series digital IC chip in 14 feet.)

智能指针的设计，主要为了解决野指针的问题(Smart pointer design, mainly in order to solve the problem of dangling pointers)

一个典型的Select IO 模型实例源代码，供大家参考使用，要下从速！(A typical model Select IO source code examples for your use and reference to the next as soon as possible!)