The HC-SR04 Ultrasonic Sensor is a highly accurate and cost-effective distance measurement module designed for electronic and robotics projects. It uses ultrasonic sound waves to detect objects and measure distances with precision, making it ideal for automation, obstacle detection, and smart sensing applications.
The sensor works by transmitting ultrasonic pulse
Key Features:
• Measuring range: 2cm to 400cm
• High accuracy: ±3mm
• Operating voltage: 5V DC
• Ultrasonic frequency: 40kHz
• Easy 4-pin interface (VCC, Trig, Echo, GND)
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Applications:
Obstacle avoidance robots
Distance measurement systems
Smart parking systems
Water level monitoring
Automation and security project
The HC-SR04 Ultrasonic Sensor is an essential module for robotics, embedded systems, and DIY electronics projects requiring reliable distance sensing.