PHILIPS非接触射频卡RC500的开发技术资料,

在51单片机上用7279芯片驱动键盘和数码管-51 SCM in 7279 with a chip-driven keyboard and digital tube

凌阳实现4*4键盘的源码， 经过调试的，大家放心使用-Sunplus to achieve 4* 4 keyboard source, after debugging, we rest assured that the use of

8279初始化以程序，键盘处理程序以及显示子程序-8279 initialization procedure, keyboard and display processing subroutine

过负荷记录仪器分为单片机数据采集器和微机数据分析记录数据库软件两部分。 仪器具有监视变压器负荷电流（通过改变传感器也可记录最低电压）并自动记录过负荷电流出现的开始时间，最大值和结束时间的功能。当前版本可保存150次的过负荷数据。并可根据需要扩充。pc机软件具有和仪器通信的能力，能够把仪器采集的数据集中保存，并能进行查询，统计等处理。使用本仪器可以定量分析变压器的过负荷情况。 本原码为PC机部分,使用了串口通信和数据库技术 -Overload apparatus records are divided into single-chip data acquisition and data analysis microcomputer database software records in two parts. Surveillance equipment with transformer load current (by changing the sensor can also record the minimum voltage) and automatically recorded the load current emerging start time, maximum and end times of the function. 150 to save the current version of data overload. And in accordance with the need to expand. pc software and equipment with communication capability to the instrument collected data centrally stored, and can query, statistics and other treatment. Use of the device which can be quantitative analysis of transformer overload situation. Primitive machine code for the PC part, the use of the serial communications and d

单片机 keilc51 和 porteus 组合仿真，用单片机实现跑马灯功能，初步了解单片机的功能和接口方面应用-keilc51 和 porteus 组合仿真，用单片机实现跑马灯功能，初步了解单片机的功能和接口方面应用

基于51系列单片机的与PC通信(RS232)的应用 正在学习单片机,编来-based on the 51 series microcontroller and PC communications (RS232) is currently studying the application microcontroller series to try

本款强排式热水器采用

单片机数字音乐盒课程设计，内含源代码，报告说明详细，绝对可用（music.asm)-SCM digital music boxes curriculum design, containing the source code, the report describes in detail, absolutely available (music.asm)

ADC0832 端口复用 8数码管显示 初学ADC及单片机的助手 有 proteus 仿真电路-ADC0832-port multiplexing 8 digital tube display beginners ADC and the microcontroller" s aides have proteus simulation circuit

秒表C51程序，包含键盘扫描， 在数码管上显示各个数字， 使用80C51单片机-stopwatch C51 procedures, keyboard scanning, digital control in the various figures show that the use of 80C51 microcontroller