DS18B20的好处？

Posted 2023-03-29

DS18B20 的测温范围-55℃~125℃，分辨率最大可达0.0625 ℃。DS18B20 可以直接读出被测温度值。而且采用3 线制与单片机相连，减少了外部硬件电路，具有低成本和易使用的特点。 DS18B20 是Dallas 半导体公司的数字化温度传感器，它是一种支持 “一线总线”接口的温度传感器。一线总线独特而且经济的特点，使用户可轻松地组建传感器网络，为测量系统的构建引入全新概念。一线总线将独特的电源和信号复合在一起，并仅使用一条线，每个芯片都有唯一的编码，支持联网寻址，简单的网络化的温度感知，零功耗等待等特点。 参考技术A 单总线结构，通讯只需一根线即可，整个DS18B20也就三个引脚、 参考技术B 1.单总线
2.外围器件少//不需要温度补偿电路 参考技术C 有对比才能看出来
相对于模拟量温度传感器好处为
1、DS18B20直接输出数字信号，不用AD转换
2、数字信号传输，在传输过程中不损失精度
3、一条总线上可以接多个点，反观模拟量温度传感器，一般一个传感器就需要两根电源，两根信号，当点数一多，线缆多的很恐怖。而18b20，则一条线就可以接64个点，传输200米，我用的长信物联的是LCT2662M这个模块实现的，也可以自己写程序。

用英语写网络的好处？

80词左右，初三水平，只写一方面，好处或坏处。

The advantage of internet
Nowdays，we all know world wide web(www) and internet.Internet is a good thing in our daily life,we can learn some useful thing by using IE(internet explorer)to check some website,sush as baidu, yahoo,sina and so on.
We can use it for get information .internet contein a lot of information about every aspects in our life.we can get news and useful mail from it .we can conmmunicate with friend from all over the world by send and receive E-mail.
We can make shopping in the internet ,It is more cheaper and conviniet than in super market .just stay at home and get what we need.
All of bove, is advantage for the young to use Internet, But Internet also have some Inadvantage aspects, Using it long time may harm our eyes and body, some people who can not ctrl themselves, may addicted into Internet game, Waste time and money, Led to waste job and study.
We should use it in a fit way, So we can benefit from it! 参考技术A Nowadays,INTERNET is so important that we can hardly do jobs without it.But every coin has 2 sides,INTERNET also has many disadvantages. The details are as follows.
On one hand,INTERNET has many advantages.We usually search information or send E-mails for study for it can rise the working efficient.Online-shopping is a new and convenient way to buy things so that it is also popular among the young people.So we can inferm that the INTERNER has a lot of advantages.
On the other hand,INTERNET also has many poor sides.Spending so many time on online games is almost the worst.The result is that people may find they have less interest in the work and study and than getting in a poor circle.Another aspect is that lacking the face-to-face communication,the chatting and trade on the INTERNET become less and less believeable.So we can inferm that INTERNET has many disadvantages.
As the reasons concluded above, the INTERNET has both advantages and disadvantages.Only when we accept the postive aspects and get rid of the poor ones,the INTERNET will be our true and reliable friend.

这里有好处也有坏处 参考技术B web advantage with disadvantage
web give us more advantage with much disadvantage in our life.
when we are loving use web can sue computer help find more things fast and do learning english fidn mean let mind keep on nice .
wehn we are meeting any danger things only use web find right help
sure life some thigns need left home to asking more body can do it use web really fast
soem time we are use website not use eyes long time eying our textbooks let own thinking that is not fast add learning textbooks find higher score to be right that is not right .