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HC-SR04 Ultrasonic Distance Sensor Module | Pro Tronix
45.00 EGP
High-reliability HC-SR04 non-contact ultrasonic distance sensor module. Employs a dual-transducer acoustic loop to track object proximity from 2cm to 400cm with extreme precision, serving as a core component for smart obstacle avoidance, mapping rovers, and fluid tank level detection.
| Weight | 0.00 kg |
|---|
In stock
Product Description
A high-precision, non-contact ultrasonic distance measurement sensor module, ideal for obstacle avoidance, automated mapping, and distance tracking in Arduino and robotics projects. The HC-SR04 module utilizes high-frequency sound waves to measure the distance to a target object by calculating the time-of-flight between transmitting and receiving an acoustic echo. It features two prominent cylindrical transducers—one acting as an ultrasonic transmitter and the other as a highly sensitive receiver receiver. Delivering an exceptionally stable reading range from 2 cm up to 400 cm with a measurement resolution of 3 mm, this module is an essential, easy-to-program component for autonomous robotic rovers, liquid level tracking bins, and smart security barriers.
Pinout / Layout Connections
The module breaks out its tracking interface via a standard 4-pin male header block:
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VCC Pin: Connects to a stable +5V DC positive power supply line.
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Trig (Trigger) Pin: Digital input pin. Pull HIGH for 10 microseconds to initiate the ultrasonic sound burst transmission.
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Echo Pin: Digital output pin. Outputs a HIGH logic pulse where the duration (pulse width) is directly proportional to the distance of the detected object.
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GND Pin: Connects to the common system ground (0V) reference.
Applications
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Autonomous Robot Obstacle Avoidance: Perfect for mobile wheeled rovers, vacuum cleaners, and automated drones to safely detect and map walls or obstacles.
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Smart Liquid & Bin Level Sensing: Excellent for monitoring trash can fullness or non-corrosive liquid storage tanks without direct physical immersion.
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Contactless Industrial Gating: Ideal for implementing safe parking garage barriers, automatic door triggers, and automated hand-sanitizer or soap dispensers.
Compatibility
The HC-SR04 operates via straightforward high/low digital pulses, making it fully compatible with:
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Arduino Board Series (Uno, Nano, Mega, Pro Micro) using native timing functions (
pulseIn()) or optimized libraries likeNewPing. -
ESP32 and ESP8266 boards (Requires a simple 5V-to-3.3V voltage divider or level shifter on the Echo pin to protect 3.3V logic inputs).
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Raspberry Pi and Raspberry Pi Pico modules (with appropriate logic level conversion on the Echo line).
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Standard 5V Logic Microcontrollers.
Technical Specifications
| Parameter | Value / Specification |
| Product Module Model | HC-SR04 |
| Operating Input Voltage | DC 5.0 V |
| Working Current Draw | ~15 mA |
| Ultrasonic Ranging Frequency | 40 kHz acoustic burst |
| Effective Detection Range | 2 cm to 400 cm ($1\text{ in}$ to $13\text{ ft}$) |
| Measurement Resolution | 3 mm |
| Measuring Angle Tolerance | $\le 15^\circ$ effective field of view |
| Trigger Input Pulse Requirement | 10 $\mu$s TTL High logic pulse |
What’s in the Box
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1 x HC-SR04 Ultrasonic Distance Sensor Module.
Shipping & Delivery Policy
At Protronix, we ensure your orders are delivered safely and efficiently through multiple reliable channels tailored to your needs.
Our Delivery Methods
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Egypt Post: Standard shipping to all governorates across Egypt via the National Postal Authority.
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Uber Scooter: Fast, same-day express delivery for local orders within supported urban areas.
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Store Pickup: You can skip the shipping fees by collecting your order directly from our main branch.
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