Ultrasonic Sensor with Arduino code Explained ||
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Ultrasonic Sensor with Arduino code
Ultrasonic Sensor with Arduino code Explained ||
0:00 Start
0:48 Pin Define
1:45 Variable Declaration
2:36 void Setup
4:17 Loop
5:44 calculations
Code and Schematic Diagram :
github.com/Rafeul1997/Arduino_with_Ultrasonic_Sens…
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Using an ultrasonic sensor with Arduino is a common project in the world of electronics and robotics. Ultrasonic sensors are capable of measuring distance by sending out a sound wave and measuring the time it takes for the wave to bounce back after hitting an object. Here's a basic guide on how to connect and program an ultrasonic sensor with Arduino:
Ultrasonic Sensor :
An ultrasonic sensor is a device that uses ultrasonic sound waves to measure distances or detect objects. These sensors are commonly used in robotics, automation, and various electronic projects for proximity sensing, object detection, and distance measurement. The basic principle behind ultrasonic sensors is to emit ultrasonic waves and measure the time it takes for the waves to bounce back after hitting an object.
Here are the key components and principles of operation for an ultrasonic sensor:
Components:
Transducer: The core component of the sensor is a transducer that can both emit and receive ultrasonic waves. In most ultrasonic sensors, this is a piezoelectric crystal.
Emitter (or Transmitter): The emitter is responsible for producing ultrasonic waves. It converts electrical energy into ultrasonic sound waves.
Receiver: The receiver picks up the reflected ultrasonic waves. It detects the echoes and converts them back into electrical signals.
Control Circuit: This circuit manages the timing of the signal and the synchronization between the emitter and receiver.
Distance Calculation: The calculated distance represents the round-trip travel time of the ultrasonic waves, so to get the actual distance to the object, you divide this value by 2.
Applications:
Proximity Sensing: Detecting the presence of an object within a certain range.
Distance Measurement: Measuring the distance between the sensor and an object.
Obstacle Avoidance: Used in robotics to navigate around obstacles.
Parking Assistance: In automotive systems for parking assistance and collision avoidance.
Popular Ultrasonic Sensors:
HC-SR04: A commonly used and inexpensive ultrasonic sensor with a range of about 2 cm to 400 cm.
PING))) Sensor: A product from Parallax with a similar ultrasonic principle.
JSN-SR04T: A waterproof ultrasonic sensor suitable for outdoor applications.
When working with an ultrasonic sensor, it's important to check the datasheet for specific details regarding voltage requirements, operating principles, and the effective range of the sensor.
Materials Needed:
Arduino board (e.g., Arduino Uno)
Ultrasonic sensor (HC-SR04 is a popular choice)
Jumper wires
Breadboard
Wiring:
Connect the ultrasonic sensor to the Arduino as follows:
VCC pin of the sensor to 5V on Arduino
GND pin of the sensor to GND on Arduino
TRIG pin of the sensor to any digital pin 9
ECHO pin of the sensor to any other digital pin 10
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