SRF10 - The Worlds Smallest Dual Transducer Ultrasonic Ranger (3~600cm)

SRF10 Ultrasonic Range Finder is a compact sonar distance measurement module developed by Devantech, designed for accurate ranging from 3 cm up to 6 m. This long‑range ultrasonic sensor integrates a 40 kHz transducer pair and communicates through a standard I2C interface, enabling reliable distance acquisition in robotics and embedded control systems. The digital ranging unit offloads echo timing from the host controller and directly reports distance in microseconds, millimeters, or inches. Compatible with popular controllers such as Arduino, this intelligent ultrasonic module simplifies integration into robotics navigation, automation systems, and smart sensing applications.

Extended Ultrasonic Detection Range

This ultrasonic ranging module delivers measurement coverage from 3 cm to 6 m, significantly wider than typical short‑range proximity sensors. A 40 kHz acoustic transducer pair enables stable echo detection across both near‑field and long‑distance scenarios. Such capability allows a single sonar ranging board to support obstacle detection, environmental mapping, and robotic navigation tasks without requiring multiple sensor types. Consistent acoustic performance across the measurement range makes this distance sensing module suitable for mobile robots, smart devices, and experimental platforms requiring reliable ultrasonic distance feedback.

Smart I2C Interface with Integrated Signal Processing

This I2C ultrasonic sensor integrates onboard timing control and signal processing, allowing the host microcontroller to focus on application logic instead of managing echo timing. The ranging electronics automatically handle ultrasonic burst generation, echo measurement, and gain control. Variable analogue gain adjustable from 40 to 700 in 16 steps enhances echo detection performance under different environmental conditions. Through a standard I2C communication bus, the digital distance sensor can easily connect to embedded controllers, robotics boards, and development platforms while maintaining efficient and stable data transfer.

Reliable ultrasonic distance measurement combined with simple I2C communication makes this compact sonar ranging module suitable for robotics obstacle avoidance, smart vehicle navigation, automation sensing, and experimental measurement systems. Integration flexibility and wide detection coverage allow this ultrasonic sensing board to function as a core distance‑measurement component in research prototypes, educational electronics, and intelligent embedded projects.