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    HC-SR04 ultrasonic module ultrasonic distance measuring module distance measuring module ultrasonic sensor

    Regular price Sale price $2.70
    SKU: AL-8NM8-7vtknvii[3]
    sales volume: 1
    classification: Hardware tools , Mechanical and Electrical Hardware , Sensor module
    New ultrasonic Old ultrasonic
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    • SPU: AL-8NM8-7vtknvii[3]
    • Model: HC-SR04
    • Series: Distance Measuring Ultrasonic Sensor
    • Output Type: Standard
    • Detection Range: Standard
    • Power Voltage: 5
    • Power Current: 2
    • Resolution: Standard
    • Operating Temperature: 50
    • Minimum Package Quantity: 1
    • Application Field: Home Appliances
    • Specification: New Ultrasonic
    • Specification: Old Ultrasonic

    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,測度距離精確。能和國外的SRF05,SRF02等超聲波測距模塊相媲美。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,就可以達到你移動測量的值了~~ 

    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

    After sales information

    Within 15 days from the date of receipt, customers can be provided with an unconditional return service. The application for return of goods requires the consent of the merchant in the store.

    Procurement and delivery

    Delivery time: For products in stock, they will be shipped within 3 working days (excluding holidays) after you place your order and make payment. You will receive our notification after shipment.

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