HC-SR04P Ultrasonic Distance Sensor 3–5.5V for Arduino

HC-SR04P Ultrasonic Ranging Sensor – Wide Voltage, Long Range Distance Measurement

The HC-SR04P Ultrasonic Distance Sensor Module is a versatile, industrial-grade ranging solution for makers, engineers, and hobbyists. Fully compatible with Arduino, Raspberry Pi, and other microcontroller platforms, this sensor delivers accurate, non-contact distance measurements from 2cm up to 450cm — all on a wide operating voltage of 3V to 5.5V. Whether you're building a robot, an obstacle avoidance system, or a smart automation project, this module gets the job done reliably.

Why Choose the HC-SR04P?

• Wide Voltage Range (3V–5.5V): Works seamlessly with both 3.3V and 5V microcontrollers, including Arduino Uno, Nano, ESP8266, ESP32, and Raspberry Pi — no level shifter needed for 3.3V systems.
• Long Detection Range: Measures distances from 2cm to 450cm (at 5V) or 2cm to 400cm (at 3.3V), making it ideal for a wide variety of projects.
• Drop-In HC-SR04 Replacement: 100% compatible with the original HC-SR04 in both hardware footprint and software — upgrade without rewriting a single line of code.
• Industrial-Grade MCU: Built with a commercial/industrial-grade microcontroller unit for stable, consistent performance across a wide working temperature range of -20°C to 80°C.
• Compact & Lightweight: Measures just 45 × 20 × 15 mm (1.77 × 0.79 × 0.59 in), fitting neatly into any project enclosure.
• Easy to Use: Simple 4-pin interface (VCC, Trig, Echo, GND) with abundant community code libraries available for quick setup.

Technical Specifications

What's in the Box?

• 1× HC-SR04P Ultrasonic Ranging Sensor Module (quantity varies by pack selected: 1–10 pcs)

Perfect For

• Arduino & Raspberry Pi projects
• Robot obstacle avoidance & navigation
• Parking assist & proximity sensing
• Level/fluid measurement systems
• Smart home automation & security
• DIY electronics & STEM education

Made in Mainland China.

For more information on ultrasonic sensor technology and electronics standards, visit the NIST Electronics Research page.

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Frequently Asked Questions

Q: Is the HC-SR04P compatible with Arduino Uno and 3.3V boards like ESP8266 or ESP32?

A: Yes! The HC-SR04P ultrasonic distance sensor is designed to operate across a wide voltage range of 3V to 5.5V, making it directly compatible with both 5V Arduino boards (Uno, Nano, Mega) and 3.3V boards such as the ESP8266, ESP32, and Raspberry Pi — no voltage divider or level shifter required.

Q: What is the maximum distance the HC-SR04P can measure?

A: When powered at 5V, the HC-SR04P ultrasonic ranging module can measure distances up to 450cm (approximately 175.5 inches). When powered at 3.3V, the maximum range is 400cm (approximately 156 inches). Minimum detection distance is 2cm in both cases.

Q: Can I use this module as a direct replacement for the original HC-SR04?

A: Absolutely. The HC-SR04P is fully backward compatible with the original HC-SR04 in both hardware size and software interface. You can swap it into any existing project without modifying your wiring or code.

Q: How many modules do I receive per order?

A: This listing offers pack quantities from 1 to 10 modules. Each module is an individual HC-SR04P ultrasonic ranging sensor board. Select the quantity that best suits your project needs.