HC-SR04+ Ultrasonic Ranging Module with UART I2C 1-Wire Interface

Description

Product Overview

The HC‑SR04+ is an upgraded ultrasonic ranging module that builds on the proven reliability of the original HC‑SR04 series while adding versatile communication options. Designed for industrial and scientific applications, the sensor operates from a low 2.8 V up to 5.5 V, making it compatible with a wide range of microcontrollers and development boards. Its compact footprint—measuring just 5 × 4 × 0.7 inches—allows easy integration into tight spaces, and the lightweight construction (approximately 1 ounce) ensures minimal impact on moving platforms.

At the heart of the module is a 40 kHz ultrasonic transducer pair that emits short bursts and measures the echo return time to calculate distance. The device features a blind‑spot as small as 2 cm and a typical maximum detection range of 4 m, providing accurate readings for most proximity‑sensing tasks. The internal driver employs frequency‑scanning technology and positive temperature compensation, guaranteeing stable performance across a broad temperature range.

Usage

Thanks to its multi‑interface support—UART, I²C, and 1‑Wire—the HC‑SR04+ can be connected to a variety of host systems without additional level‑shifting circuitry. For hobbyist robotics, the UART mode offers straightforward serial communication, while the I²C interface enables multiple sensors to share the same bus, ideal for complex navigation rigs. The 1‑Wire option is perfect for ultra‑low‑power applications where a single data line simplifies wiring.

Typical deployment scenarios include obstacle‑avoidance for autonomous vehicles, liquid‑level monitoring in tanks and reservoirs, and posture detection in smart furniture. Its low current draw of just 2 mA makes it suitable for battery‑operated devices, and the wide operating voltage range ensures reliable operation in harsh industrial environments. Whether you are building a DIY drone, a smart irrigation system, or an industrial safety sensor, the HC‑SR04+ provides the flexibility and accuracy required for precise distance measurement.

Why Choose Us

Choosing the HC‑SR04+ means selecting a sensor that combines proven ultrasonic technology with modern communication standards. Each module undergoes rigorous quality testing, including temperature cycling and signal integrity verification, to meet the high standards expected by industrial customers. The manufacturer, EC Buying, has a reputation for delivering reliable components with responsive technical support, ensuring that any integration challenges are quickly resolved.

Beyond the hardware, we provide comprehensive documentation, example code for popular platforms such as Arduino, Raspberry Pi, and ESP32, and a dedicated support forum where engineers can share insights and receive assistance. Our commitment to after‑sales service includes a 12‑month warranty and the option for bulk‑order customization, making the HC‑SR04+ a trustworthy choice for both prototype development and large‑scale production.

Key Features

• Compact size and lightweight design for easy integration into tight spaces.
• Wide operating voltage (2.8‑5.5 V) compatible with most microcontroller platforms.
• Multiple communication interfaces (UART, I²C, 1‑Wire) for flexible system design.
• Low power consumption (≈2 mA) ideal for battery‑powered and energy‑efficient projects.
• Responsive customer support and 12‑month warranty for peace of mind.

FAQ

What is the minimum detectable distance?

The sensor can reliably detect objects as close as 2 cm, thanks to its advanced driver circuitry that minimizes blind‑spot effects.

Can the HC‑SR04+ be used with a 3.3 V microcontroller?

Yes. The module operates from 2.8 V to 5.5 V, so a 3.3 V system is fully supported without additional voltage regulation.

How does the temperature compensation work?

The internal driver adjusts the ultrasonic frequency based on temperature readings, maintaining consistent measurement accuracy across a wide temperature range.

Is it possible to connect multiple HC‑SR04+ modules on the same I²C bus?

Absolutely. Each module can be assigned a unique I²C address, allowing several sensors to share the same two‑wire bus for multi‑point distance monitoring.

What kind of support is available for software integration?

We provide example libraries for Arduino, MicroPython, and C/C++ that cover UART, I²C, and 1‑Wire modes, along with detailed wiring diagrams and troubleshooting guides.