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class="proBig"><div id="yheli3k" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345503298828125/1657899.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="372ubv8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345503298828125/1657899.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zszgs8s" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠,433M無(wú)線通訊模塊</p><p><span>***更新：</span>2021-01-27 05:13:14</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="cldac4h" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海磐笙電子科技有限公司</a></p><p><span>聯(lián)系人：</span>丁白蘭</p><p><span>郵箱: </span>258787059@qq.com</p><p><span>電話: </span>15002148001</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.panshion.cn</p><p><span>手機(jī): </span>021-31775145</p><p><span>地址: </span>羅城路530號(hào)住大商務(wù)樓A樓403室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="i3krynp" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="nrj8z3r" class="box"><p><p style="text-indent:25px">單片機(jī)對(duì)接收模塊的干擾：?jiǎn)纹瑱C(jī)模擬2262時(shí)一般都很正常，然而單片機(jī)模擬2272解碼時(shí)通常會(huì)發(fā)現(xiàn)遙控距離縮短很多，這是因?yàn)閱纹瑱C(jī)的時(shí)鐘頻率的倍頻都會(huì)對(duì)接收模塊產(chǎn)生干擾，51系列的單片機(jī)電磁干擾比較大，2051稍微小一些，沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠，PIC系列的比較小，我們需要采用一些抗干擾措施來(lái)減小干擾，沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠，沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠。比如單片機(jī)和遙控接收電路分別用兩個(gè)5伏電源供電，將接收板單獨(dú)用一個(gè)78L05供電，單片機(jī)的時(shí)鐘區(qū)遠(yuǎn)離接收模塊，降低單片機(jī)的工作頻率，中間加入屏蔽等。433M無(wú)線通訊模塊的體積小便于安裝。沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠,433M無(wú)線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345503298828125/1657899.png"></div><p style="text-indent:25px">接收模塊工作時(shí)一般輸出的是高電平脈沖，不是直流電平，所以不能用萬(wàn)用表測(cè)試，調(diào)試時(shí)可用一個(gè)發(fā)光二極管串接一個(gè)3K的電阻來(lái)監(jiān)測(cè)模塊的輸出狀態(tài)。無(wú)線數(shù)據(jù)模塊和PT2262/PT2272等**編解碼芯片使用時(shí)，連接很簡(jiǎn)單只要直接連接即可，傳輸距離比較理想，一般能達(dá)到600米以上，如果和單片機(jī)或者微機(jī)配合使用時(shí)，會(huì)受到單片機(jī)或者微機(jī)的時(shí)鐘干擾，造成傳輸距離明顯下降，一般實(shí)用距離在200米以內(nèi)。采用CPU編譯碼可在數(shù)據(jù)識(shí)別位前加一些亂碼以控制零電平干擾。同步碼主要用于區(qū)別于前導(dǎo)碼及數(shù)據(jù)。有一定的特征，好讓軟件能夠通過(guò)一定的算法鑒別出同步碼，同時(shí)對(duì)接收數(shù)據(jù)做好準(zhǔn)備。無(wú)錫433M無(wú)線通訊模塊哪個(gè)廠家質(zhì)量好智能家居終端產(chǎn)品不斷增多，為數(shù)據(jù)傳輸?shù)?33MHz無(wú)線模塊開(kāi)辟了市場(chǎng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠,433M無(wú)線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345503446054688/5380704.png"></div><p style="text-indent:25px">無(wú)線發(fā)射接收模塊的作用：作用一、用于組建星型拓?fù)浣Y(jié)構(gòu)的無(wú)線通訊網(wǎng)絡(luò)。并且必需是多點(diǎn)的星型拓?fù)浣Y(jié)構(gòu)，某些非凡場(chǎng)所需要無(wú)線通訊。一方面這種發(fā)射和接收模塊的價(jià)格低廉，構(gòu)成星型拓?fù)浣Y(jié)構(gòu)的費(fèi)用相對(duì)較低;另一方面這種發(fā)射和接收模塊可采用模塊化設(shè)計(jì)，體積小、使用方便、易于集成。對(duì)于通訊速度要求不太高、距離較近的無(wú)線網(wǎng)絡(luò)來(lái)說(shuō)，這種發(fā)射和接收模塊十分實(shí)用。作用二、用于無(wú)線多通道(并行)控制。如復(fù)雜的遙控機(jī)器人等，某些場(chǎng)所需要多通道(并行)控制。一種方法是用接收模塊直接和解碼器相連，然后再和繼電器等電子元器件相連，驅(qū)動(dòng)后續(xù)的被控對(duì)象;另一種方法是用接收模塊和單片機(jī)相連，經(jīng)過(guò)數(shù)據(jù)的處置后，再用單片機(jī)連接繼電器等電子元器件，驅(qū)動(dòng)后續(xù)的被控對(duì)象。通常一對(duì)發(fā)射和接收模塊較多可以實(shí)現(xiàn)六路并行的無(wú)線控制，假如要求的通道數(shù)大于六路，可以采用多對(duì)發(fā)射和接收模塊，同時(shí)工作來(lái)滿足實(shí)際的需要。</p><p style="text-indent:25px">433m無(wú)線模塊的電路優(yōu)勢(shì):發(fā)射模塊未設(shè)編碼集成電路，而增加了一只數(shù)據(jù)調(diào)制三極管Q1,這種結(jié)構(gòu)使得它可以方便地和其它固定編碼電路、滾動(dòng)碼電路及單片機(jī)接口，而不必考慮編碼電路的工作電壓和輸出幅度信號(hào)值的大小。比如用PT2262或者SM5262等編碼集成電路配接時(shí)，直接將它們的數(shù)據(jù)輸出端第17腳接至數(shù)據(jù)模塊的輸入端即可。數(shù)據(jù)模塊具有較寬的工作電壓范圍3～12V，當(dāng)電壓變化時(shí)發(fā)射頻率基本不變,和發(fā)射模塊配套的接收模塊無(wú)需任何調(diào)整就能穩(wěn)定地接收。433m無(wú)線模塊的模塊自身輻射極小。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠,433M無(wú)線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345503233496094/747194.png"></div><p style="text-indent:25px">接收模塊的工作電壓為5伏，靜態(tài)電流4毫安，它為超再生接收電路，接收靈敏度為－105dbm，接收天線較好為25～30厘米的導(dǎo)線，建議能豎立起來(lái)。接收模塊本身不帶解碼集成電路，因此接收電路*是一種組件，只有應(yīng)用在具體電路中進(jìn)行二次開(kāi)發(fā)才能發(fā)揮應(yīng)有的作用，這種設(shè)計(jì)有很多優(yōu)點(diǎn)，它可以和各種解碼電路或者單片機(jī)配合，設(shè)計(jì)電路靈活方便。電路優(yōu)點(diǎn)：1、天線輸入端有選頻電路，而不依賴1/4波長(zhǎng)天線的選頻作用，控制距離較近時(shí)可以剪短甚至去掉外接天線。2、輸出端的波形在沒(méi)有信號(hào)比較干凈，干擾信號(hào)為短暫的針狀脈沖，而不象其它超再生接收電路會(huì)產(chǎn)生密集的噪聲波形，所以抗干擾能力較強(qiáng)。一般常用的無(wú)線模塊要求的天線阻抗為50歐姆。廣州433m通信模塊經(jīng)銷商</p><p style="text-indent:25px">433MHz無(wú)線收發(fā)模組，采用高頻射頻技術(shù)。沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠</p><p style="text-indent:25px">電子元器件制造業(yè)是電子信息產(chǎn)業(yè)的重要組成部分，是通信、計(jì)算機(jī)及網(wǎng)絡(luò)、數(shù)字音視頻等系統(tǒng)和終端產(chǎn)品發(fā)展的基礎(chǔ)，其技術(shù)水平和生產(chǎn)能力直接影響整個(gè)行業(yè)的發(fā)展，對(duì)于電子信息產(chǎn)業(yè)的技術(shù)創(chuàng)新和做大做強(qiáng)有著重要的支撐作用。努力開(kāi)發(fā)國(guó)際從事電子科技專業(yè)領(lǐng)域內(nèi)的技術(shù)開(kāi)發(fā)、技術(shù)咨詢、技術(shù)轉(zhuǎn)讓、技術(shù)服務(wù)，計(jì)算機(jī)軟硬件的研發(fā)，電子產(chǎn)品、儀器儀表、電子元器件、電氣設(shè)備、數(shù)碼產(chǎn)品、日用百貨、塑料制品、計(jì)算機(jī)軟硬件及輔助設(shè)備的銷售，從事貨物及技術(shù)的進(jìn)出口業(yè)務(wù)原廠和國(guó)內(nèi)原廠的代理權(quán)，開(kāi)拓前沿應(yīng)用垂直市場(chǎng)，如數(shù)據(jù)中心、5G基礎(chǔ)設(shè)施、物聯(lián)網(wǎng)、汽車電子、新能源、醫(yī)治等領(lǐng)域的重點(diǎn)器件和客戶消息，持續(xù)開(kāi)展分銷行業(yè)及其上下游的并購(gòu)及其他方式的擴(kuò)張。近年來(lái)，隨著國(guó)內(nèi)消費(fèi)電子產(chǎn)品的貿(mào)易型發(fā)展，電子元器件行業(yè)也突飛猛進(jìn)。從產(chǎn)業(yè)歷史沿革來(lái)看，2000年、2007年、2011年、2015年堪稱是行業(yè)的幾個(gè)高峰。從2016年至今，電子元器件產(chǎn)業(yè)更是陸續(xù)迎來(lái)了漲價(jià)潮。5G時(shí)代天線、射頻前端和電感等電子元件需求將明顯提升,相關(guān)藍(lán)牙模塊，433M無(wú)線通訊模塊，SIMcom模塊，華大單片機(jī)公司如信維通信、碩貝德、順絡(luò)電子等值的關(guān)注。提升傳統(tǒng)消費(fèi)電子產(chǎn)品中**供給體系質(zhì)量,增強(qiáng)產(chǎn)業(yè)重點(diǎn)競(jìng)爭(zhēng)力:在傳統(tǒng)消費(fèi)電子產(chǎn)品智能手機(jī)和計(jì)算機(jī)產(chǎn)品上,中國(guó)消費(fèi)電子企業(yè)在產(chǎn)業(yè)全球化趨勢(shì)下作為關(guān)鍵供應(yīng)鏈和主要市場(chǎng)的地位已經(jīng)確立,未來(lái)供應(yīng)體系向中**產(chǎn)品傾斜有利于增強(qiáng)企業(yè)贏利能力。沈陽(yáng)單片機(jī)無(wú)線通訊模塊銷售廠</p></p><br 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