HC-SR04-Ultrasonic Range Finder

  1. Affordable Price
  2. Operating Voltage: 5 V
  3. Sonar Sensing Range: 2-400 cm
  4. Max. Sensing Range: 450 cm
  5. Frequency: 40 kHz


his HC-SR04-Ultrasonic Range Finder is a very popular sensor which is found in many applications where it requires to measure distance and detect the objects.

The module has two eyes like projects in the front which forms the Ultrasonic transmitter and Receiver.? The HC-SR04?ultrasonic sensor?uses sonar to determine the distance to an object?like bats or dolphins do.

This?Ultrasonic?Sensor?module is a transmitter, a receiver and?a control?circuit in one single pack!! It has very handy and compact construction. It?offers excellent range accuracy and stable readings in an easy-to-use package.?Its operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect).

The?Trigger?and the?Echo?pins are the I/O pins of this module and hence they can be connected to the I/O pins of the microcontroller/Arduino. When the receiver detects return wave the?Echo?pin goes high for a particular amount of time which will be equal to the time taken for the wave to return back to the sensor.

Ultrasonic Ranging Module?HC-SR04?provides 2cm-400cm non-contact distance sensing capabilities, Ranging accuracy up to 3mm.

This Ultrasonic Sensor can be attached to your project using?mounting bracket, so buy it now at Robu.in we have a very good quality?Acrylic Mounting Bracket?for this HC-SR04 Ultrasonic Module.






Model HC-SR04
Operating Voltage (VDC) 5
Average Current Consumption (mA) 2
Frequency(Hz) 40000
Sensing Angle 15°
Max. Sensing Distance (cm) 450
Weight (gm) 9
Sensor Cover Dia. (mm) 16
PCB Size ( L x W ) mm 45 x 20
Shipment Weight 0.014 kg
Shipment Dimensions 5 ? 4 ? 3 cm

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