New 2 PCS HC-SR04 Module Ultrasonic Distance Measuring Transducer Sensor Arduin For Sale

 New 2 PCS HC-SR04 Module Ultrasonic Distance Measuring Transducer Sensor Arduin


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New 2 PCS HC-SR04 Module Ultrasonic Distance Measuring Transducer Sensor Arduin:
$5

New 2 PCS HC-SR04 Module Ultrasonic Distance Measuring Transducer Sensor Arduino

  • Features:
  • Ultrasonic ranging module HC-SR04 provides 2cm - 400cm non-contact
    measurement function, the ranging accuracy can reach to 3mm. The modules
    includes ultrasonic transmitters, receiver and control circuit.
  • If you are sourcing a ultrasonic ranging module , the HC-SR04 is good choose . Its
    stable performance and high ranging accuracy make it a popular module in electronic
    market .
  • Compared to the Shape IR ranging module , HC-SR04 is more inexpensive than it .
    But it has the same ranging accuracy and longer ranging distance.
  • The basic principle of work:
  • 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
  • Wire connecting direct as following:
  • 1. 5V Supply
  • 2. Trigger Pulse Input
  • 3. Echo Pulse Output
  • 4. GND
  • power supply :5V DC
  • quiescent current : <2mA
  • effectual angle: <15°
  • ranging distance : 2cm – 500 cm
  • resolution : 0.3 cm
  • 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 Module HC-SR04 x2


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