Description
HC-SR04 Ultrasonic Sensor – Distance & Obstacle Detection Module for Arduino, Raspberry Pi, and Robotics
The HC-SR04 Ultrasonic Sensor Module is a high-precision, easy-to-use distance measuring sensor that uses ultrasonic sound waves to determine the distance between the sensor and an object.
It provides accurate, non-contact distance measurement from 2 cm to 400 cm (up to 4 meters) with a high degree of accuracy (±3 mm). This module is widely used in robotics, automation, parking systems, and object avoidance applications.
It is fully compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers.
Key Features
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Non-contact distance measurement using ultrasonic waves.
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Measurement range: 2 cm to 400 cm (up to 4 meters).
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High accuracy: ±3 mm.
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Simple 4-pin interface (VCC, Trig, Echo, GND).
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Stable performance and easy integration with microcontrollers.
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Low power consumption – ideal for embedded systems.
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Compact and lightweight design for robotics and DIY projects.
Applications
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Robotics – obstacle detection & avoidance.
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IoT Projects – smart distance and proximity measurement.
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Home Automation – automatic doors, smart tanks, parking sensors.
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Industrial Systems – object detection and level sensing.
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Educational Kits – STEM learning and Arduino experiments.
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DIY Projects – creative electronic distance measurement systems.