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HC-SR04 Ultrasonic Distance Sensor
₹50.0
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The HC-SR04 Ultrasonic Sensor is a reliable and easy-to-use module for measuring distance using ultrasonic waves. It emits ultrasonic pulses and measures the time taken for the echo to return, allowing precise calculation of distances from 2 cm up to 400 cm. Widely used in robotics, obstacle avoidance, parking sensors, and automation systems, the HC-SR04 provides digital output for seamless integration with Arduino, Raspberry Pi, ESP8266, ESP32, and other microcontroller boards.
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Product Specifications
| Specification | Details |
|---|---|
| Sensor Type | Ultrasonic distance measurement |
| Operating Voltage | 5V DC |
| Operating Current | 15 mA |
| Measurement Range | 2 cm – 400 cm |
| Measurement Accuracy | ±3 mm |
| Trigger Input Signal | 10 µs TTL pulse |
| Echo Output Signal | TTL-level pulse width proportional to distance |
| Frequency | 40 kHz |
Key Features
- Measures distances from 2 cm to 400 cm with high accuracy
- Simple 4-pin interface: VCC, GND, Trig, Echo
- Compact, lightweight, and low-power module
- Fast response time (~50 ms)
- Compatible with Arduino, Raspberry Pi, ESP boards, and other microcontrollers
- Ideal for DIY robotics and automation projects
Applications
- Parking sensor systems
- Obstacle detection in robotics and drones
- Level measurement for liquids or solids
- Security and motion detection
- Automated doors and gates
- DIY automation projects
- Smart home and IoT devices
Frequently Asked Questions
Yes, but avoid direct sunlight or rain hitting the sensor for best results.
The HC-SR04 can detect objects up to 400 cm (4 meters) with an accuracy of ±3 mm.
