A sensor that uses sound waves to determine how far away an object is from it. It is used for measuring distances.
In other words, a sensor that uses sound waves to determine how far away an object is from it
Description:
This sensor uses sound waves to determine how far away an object is from it.
How It Works:
This device emits sound with a very high pitch. So high, in fact that you cannot hear it. Sound takes time to travel through the air. This clever device listens for the first echo to bounce off a nearby object. It then figures out how far away the object is by measuring the time it takes for the sound to reflect off the target and echo back to it.
Connect It:
There are four pins on the bottom of this device. Power the device by connecting the Power pin to the Arduino 5V terminal and Ground to any GND terminal on an Arduino. The Trigger and Echo pins are connected to any digital or analog terminals on the Arduino. The code tells the sensor to emit its sound using the trigger pin, and waits for the echo detection from the echo pin. It converts the time it took it to a number representing the distance in inches or centimeters.
How It Is Used:
Select the device during simulation to show a region with a circle in it. The region represents the space in which the sensor can detect a large object. The circle is the target object. Select the target to move it around the region and change the distance between it and the sensor.
Get Started:
Details about component in a circuit’s working [No Get Started Circuit]
More About Ultrasonic Distance Sensor (4-pin):
To add an Ultrasonic Distance Sensor (4-pin) in Tinkercad, search for "Ultrasonic Distance Sensor (4-pin)" in the component library, drag it onto your breadboard, and connect its terminals with wires to other components in your circuit. You can then click on the Ultrasonic Distance Sensor to set its name for easy identification.
The common 4-pin Ultrasonic Distance Sensor (such as the HC-SR04) operates using the Time-of-Flight (ToF) principle, consisting of three main components: an ultrasonic transmitter, an ultrasonic receiver, and an integrated control circuit. The four pins are VCC (Power), GND (Ground), Trig (Trigger input), and Echo (Echo output). Key specifications generally include an Operating Voltage of 5V DC and a low Operating Current typically around 15 mA (milliamperes). The sensor emits sound waves at an Ultrasonic Frequency of 40 kHz (kilohertz). Its effective Working Distance Range spans from a minimum of approximately 2 cm (centimeters) to a maximum of 400 cm or 4 m (meters), with a Ranging Accuracy of about ±3 mm (millimeters). The operational Trigger Input Signal is a 10 µs (microseconds) high pulse.
Random Nerd Tutorials – Complete Guide for Ultrasonic Sensor HC-SR04 with Arduino
Website Title: Random Nerd Tutorials
Website Page URL: https://randomnerdtutorials.com/complete-guide-for-ultrasonic-sensor-hc-sr04/
URL recommended for: A detailed, complete guide for beginners on the widely used HC-SR04 module, covering the working principle, pinout, wiring with Arduino, and providing an example sketch with code explanation.
Instructables – Ultimate Guide for Beginner to Ultrasonic Sensor
Website Title: Instructables
Website Page URL: https://www.instructables.com/Ultimate-Guide-for-Beginner-to-Ultrasonic-Sensor/
URL recommended for: A step-by-step tutorial, including an animated GIF image, that clearly explains the core working principle (Time of Flight and distance calculation formula), wiring, and Arduino code for the HC-SR04.
Baumer – Functionality and technology of ultrasonic sensors
Website Title: Baumer
Website Page URL: https://www.baumer.com/us/en/service-support/function-principle/ultrasonic-sensors---function/a/Know-how_Function_Ultrasonic-sensors
URL recommended for: A professional overview of the functionality and technology, detailing the Time-of-Flight principle, distance formula (Distance=(T×C)/2), and different sensor principles like proximity and through-beam.
Adafruit Learning System – Ultrasonic Sonar Distance Sensors
Website Title: Adafruit Learning System
Website Page URL: https://learn.adafruit.com/ultrasonic-sonar-distance-sensors/overview
URL recommended for: A concise technical overview of ultrasonic sonar sensors, their common applications in robotics, and typical range specifications.
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