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

4.2 out of 5 stars 308 customer reviews

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Blue
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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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Product description

Color:Blue

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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Color:Blue

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HC-SR04 Ultrasonic Sensor Distance Measring Module Clone; works and functions exactly like the original.


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January 28, 2013
Color: Blue|Verified Purchase
96 people found this helpful
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March 7, 2015
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September 14, 2012
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68 people found this helpful
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November 20, 2012
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