24c02

基于单片机的一些基础应用 和硬件设计以及综合设计(89c51Integrated application hardware design)

湖北水文信息系统水位雨量采集器的C51源代码，已经调试通过(Hubei hydrological information system for collecting rain water level of C51 source code, debugging has been adopted)

大多数自行车速度表工作通过使用霍尔效应传感器固定在自行车前叉。磁铁是附加到前轮上的辐条之一,它将与霍尔效应开关一次革命的车轮。速度计监测传感器计数轮革命。如果知道车轮的直径,距离可以很容易地计算如果你知道有多少革命的车轮。此外,如果时间完成革命,平均速度也可以计算出来。 对于这个问题,您将编写一个程序来确定总距离(英里)和平均速度(英里每小时)考虑到车轮直径,革命的数量和总时间的旅行。你可以假定前轮从未离开地面,并没有下滑或打滑。(Most bicycle speedometers work by using a Hall Effect sensor fastened to the front fork of the bicycle. A magnet is attached to one of the spokes on the front wheel so that it will line up with the Hall Effect switch once per revolution of the wheel. The speedometer monitors the sensor to count wheel revolutions. If the diameter of the wheel is known, the distance traveled can be easily be calculated if you know how many revolutions the wheel has made. In addition, if the time it takes to complete the revolutions is known, the average speed can also be calculated. For this problem, you will write a program to determine the total distance traveled (in miles) and the average speed (in Miles Per Hour) given the wheel diameter, the number of revolutions and the total time of the trip. You can assume that the front wheel never leaves the ground, and there is no slipping or skidding.)

开机自检、去皮、计价、清零、中文液晶显示等； 从上述中可以看出，本设计的主要思路是利用压力传感器得到重量的变化并且将重量的变化经过电压放大电路经过，A/D转换器将模拟量变换为数字量，单片机可以顺利的读取，并且将得到的信息进行采集后计算。通过累加之后的方式将物品的重量和价值总额，通过显示电路显示出来(Self-check, peel, price, clear, Chinese liquid crystal display and so on; It can be seen from the above, the main idea of this design is the change of the pressure sensors are used to get the weight and the weight change after the voltage amplification circuit, A/D converter analog conversion into digital quantity, single chip can be read smoothly, and to get information from the acquisition after calculation. The weight and total value of the item are displayed by means of the display circuit.)

EMDA控制器可以在没有cpu的参与下完成映射存储空间的数据传输，这些数据的传输可以是片内外设，片内存储器之间。(EMDA controller can be done without the participation of CPU mapping storage space of data transmission, the data transmission can be set inside and outside, between internal storage.)

以8051为基础的有键盘；有液晶显示器；有传感器前置调理电路的数据采集器控制程序。(8051-based data acquisition control program)

AT90S2313 Push Switch Led Blinking

根据IAPWS-IF97和IFC67编写的水和蒸汽性质计算软件(the software for calculating the properties of water and water vapor)

标题: 如何实现0-10v或者4-20ma模拟量的高精度采集传输 标签: 0-5v,0-10v,0-20ma,4-20ma,模拟量采集,adc模数转换,电压电流采集,温湿度采集,称重模块,变送器 文档介绍: 本文基于综科智控开关量模拟量混合模块介绍如何实现0~5V，0~10V，0~20ma，4~20ma模拟量信号的高精度ADC采集转换，采集精度高达24bit，最多可以实现8通道同时采集转换，该模块同时还配有8路光耦隔离开关量输入以及8路光耦隔离晶体管输出，功能强大，适合于对精度和稳定性要求较高的工业或者物联网场合。(Title: How to achieve high precision acquisition and transmission of analog data of 0-10V or 4-20mA Label: 0-5V, 0-10V, 0-20mA, 4-20mA, analog data acquisition, ADC analog to digital conversion, voltage and current acquisition, temperature and humidity acquisition, weighing module, transmitter Document introduction: This paper introduces how to realize high precision ADC acquisition and conversion of 0~5V, 0~10V, 0~20ma, 4~20ma analog signals based on the integrated module of fully mechanized intelligent control switching analog quantity. The acquisition precision is as high as 24bit, and the 8 channel simultaneous acquisition and conversion can be realized at most. The module is also equipped with 8 optocoupler isolation switches and 8 optocoupler isolating crystals The tube output is powerful and suitable for industrial or Internet of things with high accuracy and stability.)

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