The HC-SR04 Ultrasonic Distance Sensor is a widely used and reliable module for measuring distances using ultrasonic sound waves. It offers fast, stable, and accurate readings, making it ideal for robotics, automation, and various proximity-sensing applications.
The sensor works by sending ultrasonic pulses and measuring the time it takes for the echo to return. With a measuring range of 2 cm to 400 cm and accuracy up to ±3 mm, this sensor is perfect for beginners and professionals working with Arduino, ESP32, ESP8266, STM32, Raspberry Pi, and other microcontrollers.
The HC-SR04 features a simple 4-pin interface (VCC, GND, Trigger, Echo), making it easy to connect and program. Its low cost, stability, and wide application range make it one of the most popular distance sensors in electronics projects.
⭐ Key Features
Measuring range: 2 cm – 400 cm
Accuracy: ±3 mm
Operating voltage: 5V
Simple 4-pin interface (VCC, Trig, Echo, GND)
Non-contact distance measurement
Fast response and stable readings
Easy integration with Arduino, ESP32, Raspberry Pi
Highly reliable SPL transmitter & receiver pair
📦 Package Includes
1 × HC-SR04 Ultrasonic Distance Sensor
🔧 Applications
Robotics obstacle detection
Smart car/robot navigation
Water/ultrasonic tank level monitoring
Distance measurement tools
Security and motion detection systems
IoT automation
Educational and hobby electronics
.jpeg "Picture of COD Available")
