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SainSmart HC-SR04 Ranging Detector Mod Distance Sensor (Blue)

4.2 out of 5 stars 293 customer reviews
| 25 answered questions

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  • Using IO trigger for at least 10us high level signal
  • The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back
  • IF the signal back, through high level ,time of high output IO duration is the time from sending ultrasonic to returning. Test distance = (high level time velocity of sound (340M/S) /2
  • Power supply :5V DC, quiescent current : <2mA,effectualangle: <15 ranging distance : 2cm~500 cm resolution : 0.3 cm
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$5.65 Add-on Item & FREE Shipping on orders over $25. Details In Stock. Sold by AmericanSociety and Fulfilled by Amazon.

Frequently bought together

  • SainSmart HC-SR04 Ranging Detector Mod Distance Sensor (Blue)
  • +
  • Arduino Uno R3 Microcontroller A000066
Total price: $21.71
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Product Features

  • Size (LWH): 1.3 inches, 0.4 inches, 0.05 inches
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Product description

There are 4 pins out of the module: VCC , Trig, Echo, GND . So it's a very easy interface for controller to use it ranging. The all process is : pull the Trig pin to high level for more than 10us impulse , the module start ranging ; finish ranging , If you find an object in front , Echo pin will be high level , and based on the different distance, it will take the different duration of high level. So we can calculated the distance easily :Distance = ((Duration of high level)*(Sonic :340m/s))/2


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on January 28, 2013
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on August 3, 2013
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