Hc Sr04 Circuit Diagram

By | July 29, 2023

HC-SR04 Ultrasonic Sensor Circuit Diagram

The HC-SR04 ultrasonic sensor is a popular and inexpensive sensor that can be used to measure distance. It works by sending out a high-pitched 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 used to calculate the distance. The HC-SR04 sensor has four pins: VCC, Trig, Echo, and GND. VCC is connected to a 5V power supply, Trig is used to send the ultrasonic pulse, Echo is used to receive the echo, and GND is connected to ground. The following diagram shows the circuit for using the HC-SR04 sensor with an Arduino Uno: ```

HC-SR04 Circuit Diagram

``` The circuit is very simple. The VCC pin of the sensor is connected to the 5V pin on the Arduino, the Trig pin is connected to digital pin 13, the Echo pin is connected to digital pin 12, and the GND pin is connected to ground. To use the sensor, you can use the following Arduino code: ```

#include // Define the pins for the HC-SR04 sensor const int trigPin = 13; const int echoPin = 12; // Create an instance of the Ultrasonic class Ultrasonic ultrasonic(trigPin, echoPin); void setup() { // Set the baud rate for the serial port Serial.begin(9600); } void loop() { // Get the distance from the sensor in centimeters int distance = ultrasonic.readDistanceCM(); // Print the distance to the serial port Serial.println(distance); // Wait for 500 milliseconds delay(500); }

``` This code will print the distance from the sensor to the serial port every 500 milliseconds. You can use this code to measure the distance to objects in your environment. ## Conclusion The HC-SR04 ultrasonic sensor is a versatile and easy-to-use sensor that can be used for a variety of applications. It is a great choice for beginners who are looking to learn about sensors and Arduino programming.


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