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Home Boards & Modules Ultrasonic Module HC-SR04 Distance Measuring Ranging Transducer Sensor DC 5V 2-450cm
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Ultrasonic Module HC-SR04 Distance Measuring Ranging Transducer Sensor DC 5V 2-450cm

1.73$

  • INR: ₹ 122.00

Ultra Sonic Sensor Module Hc-Sr04 is a ultrasonic ranging sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit.There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo (Receive), and GND (Ground). 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
Category:

Description

Features of Ultra Sonic Sensor Module Hc-Sr04

  • Operating Voltage: 5V DC
  • Operating Current: 15mA
  • Measure Angle: 15°
  • Ranging Distance: 2cm – 400cm
  • Working Frequency : 40Hz
  • Trigger Input Signal : 10uS TTL pulse
  • Echo Output Signal : Input TTL lever signal and the range in proportion
  • Working Voltage : 5V(DC)
    Static Current: Less than 2mA.
    Output Signal: Electric frequency signal, high level 5V, low level 0V.
    Sensor Angle: Not more than 15 degrees.
    Detection Distance: 2cm-450cm.
    High Precision: Up to 0.3cm
    Input Trigger Signal: 10us TTL impulse
    Echo Signal : output TTL PWL signal
    Mode of connection:
    VCC
    trig(T)
    echo(R)
    GND
  • Use method:

    Supply module with 5V, the output will be 5V while obstacle in range, or 0V if not.The out pin of this
    module is used as a switching output when anti-theft module, and without the feet when ranging modules.
    Note : the module should be inserted in the circuit before been power, which avoid producing high level
    of misoperation;if not, then power again.

    Module Working Principle:

    1. Adopt IO trigger through supplying at least 10us sequence of high level signal.
    2. The module automatically send eight 40khz square wave and automatically detect whether receive
    the returning pulse signal.
    3. If there is signals returning, through outputting high level and the time of high level continuing is
    the time of that from the ultrasonic transmitting to receiving. Test distance =(high level time * sound velocity (340M/S) / 2.

    Note : 

    This module is not suitable to connect with electric power, if you need to connect this module with
    electronic power,then let the GND terminal of this module to be connected first,otherwise, it will affect the
    normal work of the module

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