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Ultrasonic Module HC-SR04 Distance Sensor For Arduino

Price per Unit (piece): $8.00
Ships To: Worldwide

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Description:


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Product Description

NOTE:The link is the documents about Ultrasonic Module HC-SR04 Distance Sensor.

https://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-019-100/HC-SR04.rar

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

Product Features

  • 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, effectual angle: <15°?ranging distance : 2cm~500 cm?resolution : 0.3 cm




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