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    Reprehenderit qui in ea

    HC-SR04 Ultrasonic Ranging Module, Ultrasonic Sensor SR04, New and Old Versions with Stand

    Regular price Sale price $2.00
    SKU: AL-N8M0-8lhtkq1g[3]
    sales volume: 4
    classification: Hardware tools , Hand tools , IC puller
    HC-SR04 * 5V HC-SR04 New*3.3-5V HC-SR04 Single Chip *3.3-5V HC-SR04*2022 Model Blue bracket
    Free Size
    Buy now
    • Product description
    • After sales
    • deliver goods
    • payment
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    • SPU: AL-N8M0-8lhtkq1g[3]
    • Model: HC-SR04 Old Version * 5V
    • Model: HC-SR04 New Version * 3.3-5V
    • Model: HC-SR04 Single Chip * 3.3-5V
    • Model: HC-SR04 * 2022 Version
    • Model: Blue Bracket

    HC-SR04 超聲波模塊 測距模塊 超聲波 傳感器 送資料

    資料下載:

    http://pan.baidu.com/s/1zKSbC

    1、本模塊性能穩定,測度距離。能和國外的SRF05,SRF02等超聲波測距模塊相。模塊高精度,盲區(2cm)超近,穩定的測距是此產品成功走向市場的有力根據!此模塊完全謙容GH-311防盜模塊

    2 主要技術參數:

            1:使用電壓:DC5V               2:靜態電流:小於2mA
          3:電平輸出:高5V                4:電平輸出:底0V
          5:感應角度:不大於15度     6:探測距離:2cm-450cm  7:高精度:可達0.3cm

    板上接線方式,VCC、trig(控制端)、  echo(接收端)、 out(空腳)、 GND

    註: TRIP引腳是內部上拉10K的電阻,用單片機的IO口拉低TRIP引腳,然後給一個10us以上的脈衝信號。

    OUT腳為此模塊作為防盜模塊時的開關量輸出腳,測距模塊不用此腳! 

    注意:模塊應先插好在電路板上再通電,避免產生高電平的誤動作,如果產生了,重新通電方可解決。

    本模塊可提供測距程序:C51,PIC18F877,義龍單片機,三種MCU的測試參考。

    3、URF04模塊工作原理:

       (1)採用IO觸發測距,給至少10us的高電平信號;

       (2)模塊自動發送8個40khz的方波,自動檢測是否有信號返回;

       (3)有信號返回,通過IO輸出一高電平,高電平持續的時間就是超聲波從發射到返回的時間.

       測試距離=(高電平時間*聲速(340M/S))/2; 

        本產品使用方法簡單,一個控制口發一個10US以上的高電平,就可以在接收口等待高電平輸出.一有輸出就可以開定時器計時,當此口變為低電平時就可以讀定時器的值,此時就為此次測距的時間,方可算出距離.如此不斷的周期測,就可以你移動測量的值了~~ 

    模塊工作原理:

       (1)採用IO觸發測距,給至少10us的高電平信號;

       (2)模塊自動發送8個40khz的方波,自動檢測是否有信號返回;

       (3)有信號返回,通過IO輸出一高電平,高電平持續的時間就是

     超聲波從發射到返回的時間.測試距離=(高電平時間*聲速(340M/S))/2;  

    本模塊可提供全套測距程序:C51,PIC18F877,超聲波LCD1602顯示,超聲波LCD12864顯示,數碼管顯示,串口顯示等,測距參考程序。

    供以下全套資料



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    After sales information

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