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Ultrasonic HC-SR04 Distance Measuring Module


5 in stock


5 in stock

Technical Parameters
  • 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
Module Working Principle
  • Adopt IO trigger through supplying at least 10us sequence of high level signal.
  • The module automatically send eight 40khz square wave and automatically detect whether receive.the returning pulse signal.
  • 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.

Package Includes:

  • 1 x HC-SR04 Ultrasonic Module

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