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Description: 目前，语音合成、语音识别、语音存储和回放技术的应用越来越广泛，尽管利用一般的单片机测控系统中都有的硬件电路¬ （如A/D、 D/A、存储器等）能完成语音信号的数字化处理，但是功能比较单一、且效果不是很好。本文采用单片机AT89C52与语音芯片ISD2560组成的语音存储系统，实现了语音的分段录取、组合回放，结合LCD液晶显示模块OCMJ2X8，可实现简单的公交报站功能。系统硬件电路简单，调试方便，性价比高，实用性强。
-Currently, speech synthesis, speech recognition, voice storage and playback technology more widely, despite the use of single-chip measurement and control system in general have a hardware circuit ¬ (such as A/D, D/A, memory, etc.) can completion of the digital speech signal processing, but a single function, and the effect is not very good. In this paper, AT89C52 single-chip component and the voice chip ISD2560 voice storage system, the sub-taking voice, combined playback, combined with liquid crystal display LCD module OCMJ2X8, can be a simple function of the bus stop. A simple hardware circuit, debugging convenience, cost-effective, practical. Keywords: voice recording system single-chip microcomputer AT89C52 ISD2560
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Size: 394240 |
Author: 马发权 |
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Description: 这是AT89C51/AT89C52/STC8952的程序，还有一些配套的C语言程序。非常有用，里面有LCD 数码管，跑马灯，A/D D/A等-This is AT89C51/AT89C52/STC8952 procedures, and some of the C language programming package. Very useful, there are LCD digital tube, Marquee, A/DD/A, etc.
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Size: 608256 |
Author: 全全 |
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Description: A/D转换测试程序 在单片机AT89C52上测试，可对以ADC0804等转换起到启示作用！-A/D converter in the microcontroller AT89C52 test program to test, can convert to play such ADC0804 inspiration!
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Size: 1024 |
Author: 李斌斌 |
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Description: 本系统由单片机AT89C52、温度检测电路、A/D转换电路、键盘显示电路等部分组成，其原理框图如图2.1所示。在系统中，利用传感器测得电阻炉实际温度并转换成毫伏级电压信号，该电压信号经过温度检测放大电路和A/D转换电路转换成与炉温相对应的数字信号进入单片机，单片机进行数据处理后，通过液晶显示器显示温度，并判断是否报警，同时将温度与设定温度比较，由设定的控制算法计算出控制量，根据控制量通过控制固态继电器的导通和关闭时间从而控制电阻丝的导通时间，以实现对炉温的控制。-Resistance furnace is applied extensively in industry production.The control result oftemperature control system will directly affect quality of products and efficiency of production so the exact precision is demanded. At present conventional PID control method is used usually by most domestic resistance furnace in industries. The temperature control for resistance furnace has many characteristics such as non-linearity, big inertia,great lag. It is difficult to establish its accurate mathematic model so we can t obtain the satisfied result using the conventional PID control method.Therefore, it is very valuable to design the temperature control system which has exact precision and steady operation.
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Size: 347136 |
Author: 张超 |
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Description: 本例利用ADC0809 的A/D 转换原理，将被测的多路模拟量转换成数字量,并
用数字方式显示测量结果。本系统以单片机AT89C52 为系统的控制核心,结合A/D 转换
芯片ADC0809 设计一个多路电压采集系统，其中A/D 转换结果经过AT89C52 处理，最后
通过数码管显示相应的数值。本系统通过一个按键可以选择8 路0－5V 之间的直流电压
值进行测量，并在四位数码管上显示相应的数值。读数据准确，测量方便。-In this case the use of ADC0809 A/D conversion principle, the measured multi-channel analog to digital conversion, and measurement with digital display. The system of control for the system AT89C52 microcontroller core, combined with A/D converter chip ADC0809 Multi-voltage design a collection system, in which A/D conversion result after AT89C52, at last, through the digital display the corresponding value. The system via a button you can choose between 8-way 0-5V DC voltage measurement and digital display of the four corresponding values. Reading the data is accurate, convenient measurements.
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Size: 29696 |
Author: 吴锴 |
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Description: protues绘制89c52单片机开发板，对与单片机学习非常有用。可与keil配合，进行仿真。-protues 89c52 microcontroller development board to draw on and MCU learning is very useful. With keil with, for simulation.
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Size: 60416 |
Author: vv |
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Description: 8路输入模拟信号数值显示巡检数字电压表可以测量0--5V的8路输入 模拟信号电压值，并在4位LED数码管上轮流显示或单路选择显示。
按系统功能实现要求，决定控制系统采用AT89C52单片机，A/D转换采用ADC0809。系统除能确保实现要求的功能外，还可以方便地进行8路其他A/D转换量的测量、远程测量结果传送等扩展功能。
采集 8 个通道的模拟量在数码管显示出来。模拟量值的测量范围是0-255,第2个数码管用于显示哪一个通道，后2个数码管用于显示采集的模拟量的值，每秒钟显示切换一下通道。
本设计还有通道选择的功能．有两个按键,一个是调节轮流显示和选择通道两种功能的转换，另一个是选择通道的切换。要注意的地方：
1、只有当轮流显示的通道快显示到通道8后，长按住功能转换键等出现数码管全熄灭后再放开，就会转到选择通道的功能。
2、切换通道时，也要长按一会，等出现数码管全熄灭后再放开。-8 road input analog signals that digital voltmeter measurement circuit can 0-5 V 8 road input analog signals voltage value, and in the four LED digital display or taking turns on the single option to show.
According to the system functions requirements, decided to control system adopts AT89C52 single chip microcomputer, A/D conversion using ADC0809. The system can ensure the request except functions, but also can be convenient to 8 way other A/D conversion amount of measurement, remote measurement results delivery etc function expansion.
8 channel simulation collection of digital tube in the display. Simulation of the value of measurement range is 0-255, second digital tube is used to show which channel, 2 digital tube used to show the simulation of the value of the collection of every second. The channel that switch.
This design and channel selection function. There are two key, is a regulation that choose channels and in turn two function conversion, the other is a choice
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Size: 58368 |
Author: 楚明岩 |
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Description: 本次设计运用AT89C52单片机，设计了一种自动控制电路,该电路用于太阳热水器。当使用热水器时，可以自动进行温度检测和液位检测，使太阳能自动补水或排水
使用说明:
按”*”键进入设置界面
在设置界面下,按”*”键可转换设置项,设置完成后按”#”键保存并返回监控界面.
水温设置是指上水时当水箱温度低于水温设置值时停止上水,以保证水箱温度达到使用条件.
A、B、C、D键可分别设置上水时限制水位为100 、75 、50 和25 四档。
设置时间限时为30秒，超时自动回到监控界面。
注：在监控界面下，3秒内连按5次A键可强制开/关水,当水位达到设置值时会自动停止上水.
-The design using AT89C52 microcontroller design an automatic control circuit, the circuit for the solar water heater. When using a water heater, you can automatically temperature measurement and liquid level detection, solar automatic water or drainage Instructions for use: Press the " *" key to enter the settings in the settings interface, the interface Press " *" key can be converted setting, set to complete press " #" key to save and return to the monitor interface water temperature set refers to the Sheung Shui Sheung Shui stop when the tank temperature is lower than the water temperature set value, to ensure that the tank temperature reaches conditions of use. A, B, C, D keys limited water level can be set Sheung Shui to 100 , 75 , 50 and 25 of fourth gear. set the time limit of 30 seconds, the timeout is automatically back to the monitor interface. Note: The monitoring interface, within three seconds even 5 times th
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Size: 91136 |
Author: 曾刚 |
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