HC-SR04 Ultrasonic Distance Sensor – Accurate & Reliable Distance Measurement
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🔹 Wide Detection Range – Measures distances from 2cm to 450cm
🔹 40kHz Ultrasonic Transducer – Reliable and interference-resistant sensing
🔹 Low Power Consumption – Draws less than 2mA in standby
🔹 Narrow Beam Angle – ≤ 15° for focused and accurate detection
🔹 Fast Response Time – Real-time distance updates
🔹 TTL Signal Output – 5V logic compatible
🔹 Simple 4-Pin Connection – Easy integration into any project
🔹 Compact & Durable PCB – Long-lasting performance
The HC-SR04 Ultrasonic Distance Sensor Module is a high-performance, cost-effective solution for accurate non-contact distance measurement. By transmitting 40kHz ultrasonic sound waves and measuring the echo return time, this sensor delivers fast, stable, and precise distance readings from 2cm to 450cm.
Designed for microcontroller platforms such as Arduino, ESP32, Raspberry Pi, STM32, and other 5V systems, the HC-SR04 is ideal for robotics, automation, smart devices, security systems, and educational projects. Its low power consumption, compact design, and simple 4-pin interface make it perfect for beginners and professionals alike 🚀
⚙️ Technical Specifications
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Operating Voltage: 5V DC
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Operating Current: < 2mA
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Ultrasonic Frequency: 40kHz
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Trigger Input: 10µs TTL Pulse
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Echo Output: TTL Pulse Width Signal
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Logic Level: 5V High / 0V Low
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Detection Angle: ≤ 15°
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Measurement Method: Time-of-flight ultrasonic ranging
🔌 Pin Configuration
📍 VCC – 5V Power Supply 📍 TRIG – Trigger Signal Input 📍 ECHO – Distance Pulse Output 📍 GND – Ground
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