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Ultrasonic Distance Sensor - 3.3V (HC-SR04), 180° (red) - SparkFun Electronics

· MPN: SEN-28798

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  This is the HC-SR04 ultrasonic distance sensor, now in Red! This economical sensor offers non-contact measurement functionality ranging from 2cm t...

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This is the HC-SR04 ultrasonic distance sensor, now in Red! This economical sensor offers non-contact measurement functionality ranging from 2cm to 400cm, with a ranging accuracy of 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). You will find this sensor very easy to set up and use for your next range-finding project!

This sensor has additional control circuitry that can prevent inconsistent "bouncy" data depending on the application.

Note: This is the same ultrasonic sensor used with the XRP & XRP DIY kits.

 


Features & Specs

 

  • Working Voltage (DC): 3.3V~5V
  • Working Current: 15mA
  • Working Frequency: 40Hz
  • Max Range: 4m
  • Min Range: 2cm
  • Measuring Angle: 15°
  • Dimension: 45 x 20 x 15mm

 

Documentation

 

Jargon buster

Plain-language definitions for the technical terms used above.

DC
DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
GND
GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
VCC
VCC is the positive power-supply connection on a chip or module. Connecting it to the correct supply voltage is needed for the part to power on and helps avoid damaging the electronics.

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All Products Arduino Sensors New Arrivals Prototyping & Wiring

Brands

Brands and Manufacturers SparkFun

Sensors & Input

Distance & Ranging Sensors Motion (PIR, ultrasonic) Proximity & Distance Sensors Sensors & Modules

HC-SR04-R Ultrasonic Ranging Module Datasheet

Datasheet · 826.7 KB · Click any page to view full size

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Supplier page — sparkfun.com

Supplier Description · 602.6 KB · Click any page to view full size

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