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Ultrasonic Distance Sensor Module HC-SR04 for Arduino

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The Ultrasonic Distance Sensor Module HC-SR04 is a versatile sensor that can use in a variety of projects. The HC-SR04 Ultrasonic Sensor has a range of 2cm to 400cm (about an inch to 13 feet) and an accuracy of 3mm.

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The HC-SR04 is an ultrasonic distance sensor module that uses sonar to determine the distance to an object. Ultrasonic Ranging Module is a popular sensor for robotics and DIY projects, and is relatively inexpensive and easy to use.

The HC-SR04 has a range of 2cm to 400cm (about an inch to 13 feet) and an accuracy of 3mm. SR04 Sensor emits an ultrasonic pulse at 40kHz, which travels through the air and bounces off of objects. The sensor then measures the time it takes for the pulse to return, and uses this information to calculate the distance to the object.

It is important to note that the HC-SR04 has a maximum current draw of 20mA. The HC-SR04 ultrasonic distance sensor can operate on a voltage range of 3.3V to 5V. However, it is recommended to power it with 5V for optimal performance. If you are using a 3.3V microcontroller, you will need to use a level shifter to convert the 5V output from the HC-SR04 to 3.3V.

The Ultrasonic Sensor Module HC-SR04 works by emitting a high frequency ultrasonic sound wave (40 kHz) and then listening for the echo. The time it takes for the sound wave to travel to the object and back is used to calculate the distance. The HC-SR04 can measure distances from 2 centimeters to 400 centimeters with a resolution of 0.3 centimeters.

The HC-SR04 sensor is an ultrasonic distance sensor that uses sonar to measure the distance to an object. Ultrasonic Senso is a popular sensor for robotics and other projects that require distance measurement.

Features:-

The SR04 Ultrasonic Sensor can measure distances from 2 centimeters to 400 centimeters with a resolution of 0.3 centimeters. The HC-SR04 Sensor is relatively easy to use and can interface with a variety of microcontrollers, including Arduino. Here are some of the benefits of using the HC-SR04 ultrasonic distance sensor:

  • Inexpensive
  • Easy to use
  • Versatile
  • Accurate
  • Durable

Ultrasonic Distance Sensor Module HC-SR04 Specifications : –

HC-SR04 sensor is a non-contact distance measurement module, SR04 Sensor provides high accuracy and high resolution ultrasonic proximity detection and ranging in air. HC-SR04 ultrasonic distance sensor actually consists of two ultrasonic transducers. Here are the specifications of the HC-SR04 ultrasonic distance sensor:

  • Operating voltage: 5V
  • Operating current: <15mA
  • Trigger pulse width: 10µs
  • Echo pulse width: Proportional to distance
  • Range: 2cm – 400cm
  • Accuracy: ±3mm
  • Measuring angle: <15°
  • Operating frequency: 40kHz

Ultrasonic Distance Sensor Module HC-SR04 Applications : –

The HC-SRO4 Ultrasonic Sensor is a versatile sensor that can use in a variety of projects. Ultrasonic Ranging Module HC-SR04 is a great choice for anyone who wants to create a project that can sense objects and measure distances.

The HC-SR04 can use to measure the distance to an object by sending a ultrasonic pulse and measuring the time it takes for the pulse to return. The distance to the object can calculate by using the standard formula. The HC-SR04 is a popular sensor for a variety of projects, including:

  • Robotics: 
  • Home automation: 
  • Security systems: 
  • 3D printing: 
Ultrasonic Distance Sensor Module HC-SR04 Pin Description : –

The HC-SR04 Sensor works by emitting a high frequency ultrasonic sound wave and then listening for the echo. The time it takes for the sound wave to travel to the object and back is use to calculate the distance. The HC-SR04 can use with a variety of microcontrollers, including the Arduino. 

If you are using the HC-SR04 with a Raspberry Pi, you will need to use a logic level shifter to convert the 3.3V logic level of the Raspberry Pi to the 5V logic level of the HC-SR04.

The HC-SR04 has four pins:

  • VCC: Connects to a 5V power supply.
  • Trig: The trigger pin use to send a pulse to the sensor, which will cause it to emit an ultrasonic wave.
  • Echo: The echo pin will output a pulse whose width is proportional to the distance to the object.
  • GND: Connects to ground.
Package : –

1 x Ultrasonic Distance Sensor Module HC-SR04

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Ultrasonic Distance Sensor Module HC-SR04 for Arduino
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