Description
Product Overview
The HC-SR04P ultrasonic ranging module from Rakstore is engineered for precision distance detection in demanding industrial and scientific environments. Operating on a flexible 3‑5.5 V supply, the sensor delivers accurate measurements from 2 cm up to 450 cm, covering a broad spectrum of applications. Its 40 kHz ultrasonic transducer emits sound waves that reflect off objects, and the built‑in microcontroller processes the echo time to calculate distance with a blind zone of just 2 cm. The module features a ±15° detection cone, ensuring reliable readings on flat surfaces while minimizing interference from off‑axis objects. Designed with durability in mind, the unit tolerates temperatures from –10 °C to 70 °C and consumes only 2.2 mA during operation, making it suitable for battery‑powered and energy‑conscious projects. Multiple communication interfaces—GPIO, UART, and IIC—provide flexibility for integration with microcontrollers, single‑board computers, and PLCs. The compact footprint and robust construction allow easy mounting on printed circuit boards or within custom enclosures.
Usage
Designed for a wide range of scenarios, the HC‑SR04P excels in robotics, where precise obstacle detection and navigation are critical. Hobbyists and professionals alike can employ the sensor in autonomous drones, ground‑based rovers, and robotic arms to prevent collisions and maintain safe operating distances. In industrial automation, the module serves as a reliable level sensor for tanks, silos, and hoppers, providing real‑time fill‑level monitoring without direct contact with the material. Its fast 200 ms measurement cycle enables rapid feedback loops for conveyor belt control, object sorting, and safety interlocks. The sensor also integrates seamlessly into smart home projects, such as automatic garage door openers, water‑level alarms, and proximity‑based lighting systems. Because of its low power draw and wide voltage tolerance, the HC‑SR04P can be powered from USB, battery packs, or regulated power supplies, offering flexibility for portable or fixed installations.
Why Choose Us
Rakstore stands behind the HC‑SR04P with a commitment to quality and customer satisfaction. Each module undergoes rigorous testing for accuracy, temperature stability, and long‑term reliability before leaving the factory. Our design incorporates a high‑precision transducer and a calibrated timing circuit, guaranteeing consistent performance across the full measurement range. We provide comprehensive documentation, including wiring diagrams, code examples for popular development platforms, and detailed specifications to accelerate your development cycle. In addition, Rakstore offers responsive technical support and a straightforward return policy, ensuring that any issues are resolved quickly. By choosing our sensor, you benefit from a blend of robust engineering, flexible interfacing options, and a service team dedicated to helping you succeed.
Key Features
- Wide operating voltage (3‑5.5 V) enables use with diverse power sources.
- Long detection range of 2 cm to 450 cm provides versatility for many applications.
- Compact design and ±15° detection angle simplify integration into tight spaces.
- Low power consumption (2.2 mA) extends battery life for portable projects.
- Responsive customer support and easy‑return policy ensure peace of mind.
FAQ
What is the minimum distance the sensor can accurately measure?
The HC‑SR04P has a blind zone of about 2 cm, meaning measurements closer than this distance may be unreliable.
Can the module operate in a noisy industrial environment?
Yes. The sensor’s 40 kHz ultrasonic frequency is less affected by typical electromagnetic noise, and its ±15° field of view helps filter out stray reflections.
Which communication interface should I choose for my project?
If you need simple digital signaling, use the GPIO mode. For serial communication with a microcontroller, UART is convenient. IIC (I²C) is ideal when multiple sensors share the same bus and you require addressable data streams.
Is the sensor compatible with 5 V logic levels?
Absolutely. The HC‑SR04P operates safely within a 3‑5.5 V range, making it compatible with most 5 V microcontroller platforms.
What is the typical response time for a measurement?
The module completes a distance measurement cycle in approximately 200 ms, allowing for near‑real‑time monitoring in most control loops.
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