Keyestudio SR01 Ultrasonic Sensor Module V2 (N76E003AT20) for Arduino Robot Car

The Keyestudio SR01 Ultrasonic Sensor Module V2 is an affordable proximity and distance sensor designed to give your Arduino-based robotics projects spatial awareness. Ideal for students, hobbyists, and makers, this module helps prevent robot cars from crashing or falling off tables. It is perfect for building obstacle-avoidance systems, water level sensors, or interactive radar displays.

Spatial awareness for your robots

This module acts as your Arduino's eyes, allowing it to detect obstacles and navigate its environment safely. It is highly effective for preventing autonomous robot cars from crashing into walls or tumbling off table edges.

Versatile project applications

Beyond simple obstacle avoidance, this sensor can be integrated into turret systems, water level sensing devices, and DIY parking sensors. Its versatility makes it a staple component for diverse maker projects.

Interactive computer displays

You can pair this ultrasonic module with an Arduino and a Processing sketch to create an interactive radar-style display on your computer screen. This offers an engaging way to visualise spatial data.

Precise detection range

The sensor measures distances from a close-range minimum of 2cm up to a maximum range of 2 to 3 metres. This makes it highly reliable for both close-quarters navigation and wider room scanning.

Focused measuring angle

With a narrow 15-degree measuring angle, the module provides targeted detection without picking up unwanted peripheral interference. This ensures accurate distance readings along the sensor's direct line of sight.

Technical specifications and power

Operating at a standard DC 5V with a working current of 15mA, the module uses a 40KHz working frequency. It is triggered by a 10-microsecond TTL pulse, making it straightforward to interface with standard microcontrollers.