HC-SR04 Ultrasonic Sensor Module for Smart Cars, Robots, and Drones

Description

What is it The HC-SR04 is an ultrasonic sensor module suitable for robotics, smart car, and drone projects. It is used to measure distances to obstacles or objects nearby. Features Ultrasonic sensor suitable for distance measurement in both indoor and outdoor environments. Compatible with Arduino and other microcontrollers. Can detect obstacles up to a certain distance (check datasheet). What is it used for It is used to create robotic devices such as rovers, smart cars, or drones that avoid obstacles. Ideal for Arduino and ESP8266/ESP32 projects. Tutorial: How to Use HC-SR04 Ultrasonic Sensor The HC-SR04 ultrasonic sensor module is suitable for robotics and smart car projects requiring distance measurement. It is ideal for beginners and intermediates, helping their devices avoid obstacles. What do you need Arduino Uno or compatible USB cable Digital pins Connect the VCC pin of the HC-SR04 module to the 5V of the Arduino Connect the GND pin of the module to one of the Arduino GND pins Connect the Trig pin of the module to a digital pin of Arduino (e.g., Pin 9) Connect the Echo pin of the module to another digital pin of Arduino (e.g., Pin 10) Open the Arduino IDE and create a new sketch Include the NewPing library or use the provided source code Set the Trig and Echo pins in the sensor variable Add instructions to read the distance and print it to the Serial Monitor Example code NewPing sonar(9, 10); // Pin 9 as Trig, Pin 10 as Echo void setup() { Serial.begin(9600); } void loop() { int distance = sonar.ping_cm(); Serial.print(distance); Serial.println(