HC-SR04 ultrasonic sensor

HC-SR04 ultrasonic sensor

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The HC-SR04 Ultrasonic Sensor is a very affordable proximity/distance sensor that has been used mainly for object avoidance in various robotics projects . It essentially gives your Arduino eyes / spacial awareness and can prevent your robot from crashing or falling off a table. It has also been used in turret applications, water level sensing, and even as a parking sensor.

Feature:

  • Model: HC-SR04
  • Color: Blue + Silver
  • 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 3mm
  • 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
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  • Views: 1972
  • Product Code: MOD006
  • Availability: In Stock
  • $2.00
  • 10 or more $1.79
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