Hardware needed to develop liquid crystal display module 1602 required the user....

在做一个单片机系统时，常常会遇到这样那样的数据采集，在这些被采集的数据中， 大部分可以通过我们的I/O 口扩展接口电路直接得到，由于51 单片机大部分不带AD 转换 器，所以模拟量的采集就必须靠A/D或V/F 实现。下现我们就来了解一下AD0809与51 单 片机的接口及其程序设计。

单片机 AT89C52 的中文资料 适合新手 学习！重要基础单片机资料-SCM AT89C52" s Chinese data suitable for novice to learn! An important foundation for SCM information

单片机编程的bcd码和hex码的互换，BCD2HEX 例子： c=BCD2HEX(0x255) //255 转成HEX为0xff c=HEX2BCD(0xff) //0xff 转成BCD码为 2-microcontroller programming bcd yards and hex code swap BCD2HEX example : c = BCD2HEX (0x255)// 255 to HEX conversion c = 0xff HEX2BCD (0xff)// 0xff conversion of 255 BCD

STC单片机程序主要完成电压采集和AD过程-STC-voltage single-chip process is essentially completed the process of collection and AD

使用AT89C2051的红处遥控窗帘 作者：徐福成 　　本文介绍一款使用微电脑管理的、红外遥控器控制的多功能窗帘控制器。该窗帘控制器采用 89C2051 单片机的最小系统设计，控制一个 220V 的可逆、变速电动机控制窗帘的拉开和关闭。 　　窗帘控制器可以使用红外遥控器进行远程手动开、手动关和手动停控制；可以执行事先输入的开启时间和关闭时间进行时间控制；还可以根据室外环境亮度实现环境亮度光控。三种工作方式可以方便地进行选择，当选择时间控制的方案时，数码管还能显示当时小时和分钟时间，不过时间数据只能顺序显示，显示一遍后，略等片刻再显示下一遍时间。另外、电机拉动窗帘的工作的时间长度，电机工作的时候是否有鸣响提示，以及光控状态下环境亮度的控制参数的调整等等都可以通过遥控器进行设置。-use of the red remote control curtain Department Author : Xu cost of introducing the new management of the use of microcomputer, infrared remote control of the multi-function controller curtains. The curtain controller 89C2051 the minimum system design, control of a 220V reversible, variable speed motor control and opened the curtains closed. Curtain controller can use infrared remote control for remote manual open, manual clearance and stopped manually control; Input can be implemented prior to the opening time and the closing time to time control; Also under the outdoor environment can achieve environmental brightness optical brightness control. T

遥控数字钟应用程序，应用于多种数字钟接口，可以遥控设备，省力。自制LED电子钟在很多电子报刊杂志上都可以见到，但大多数在断电后都要重新设置时间等 参数，给使用带来很多不便。也有用后备电池作为备用电源的，但往往体积较大。本文介绍 的LED电子钟克服了以往的弊端，而且采用了家电通用的红外遥控器进行控制，方便使用。 有一路闹铃输出，可以通过遥控器设置闹铃时间及允许与否。-digital clock remote control applications, digital clock used in a variety of interface, remote-control equipment, effort. Homemade LED electronic bell in many electronic newspapers and magazines can all, but most of the power outages after the re setup time and other parameters to use in many ways. Also useful as a standby battery backup power, but often larger. This paper introduces the LED electronic clock to overcome the shortcomings of the past, and the use of common household appliances infrared remote control, and ease of use. A way Alarms output, the remote control can set the alarm time and allow it or not.

该程序是将18B20测得的温度值经单片机处理后在数码管上显示，比较适合单片机初学者使用。-The program is 18B20 measured temperature value has been processed in the digital control microcomputer displays are more suitable for beginners to use microcontroller.

IIc应用子程序，此程序可应用AT24C08等等串行EEPROM芯片的开发和学习使用，此程序调试通过-IIc application subroutine, this procedure can be applied so AT24C08 serial EEPROM chip development and learning to use, this program debugging through

AT89S51资料，中文版的，很利于大家学习-AT89S51 information, the Chinese version, it is beneficial to them to learn from

比较详细地列出了各种现行的稳压电源，对于从事模拟开发的工程人员有很大的参考价值-a more detailed list of all the existing power supply, engaged in the development of simulation engineering staff have great reference value