IR Ranging Module | 2-15cm Proximity Sensor, 5V I2C

The GP2Y0A51SK0F is a short-range infrared distance sensor that measures from 2cm to 15cm. It’s a compact module designed for projects that need very close proximity detection. While it's not a laser distance sensor, its focused IR beam gives you precise readings for close-up tasks. Features and Benefits - 2cm to 15cm Detection Range - Good for close-quarters navigation and object sensing where other sensors are not effective. - Analog Voltage Output - Provides a variable voltage that corresponds to distance, which is easy to read with an Arduino's analog pin. - Low Power Consumption - Operates on a standard 5V supply, allowing it to be powered directly from most microcontrollers. - JST Connector Included - The module comes with the matching 3-pin cable for a secure and simple connection to your project. Applications - Guiding a wall-following robot or helping a small robot navigate a maze. - Building a touchless switch for a hand sanitizer dispenser or an automatic faucet. - Detecting the presence of paper in a printer tray or parts on a miniature conveyor belt. What It Is This product is an infrared ranging sensor, an alternative to traditional laser distance sensors. It operates at 5V and provides a high precision measurement range of 2-15 cm. The sensor uses an I2C/IIC output interface for communication, making it compatible with Arduino platforms. Unlike some laser sensors that use a CCD sensor, this device employs infrared technology for distance measurement. Key Uses & Applications This infrared ranging sensor is ideal for projects requiring precise, short-range distance detection. Its 2-15 cm measurement range makes it suitable for obstacle avoidance in small robotics, proximity sensing, or object detection in compact automated systems. The 5V operating voltage and I2C interface ensure straightforward integration with Arduino microcontrollers for various DIY electronics and educational applications. How to Choose When selecting a distance sensor, consider the required measuring range and output interface. This particular sensor offers a 2-15 cm range and an I2C output, which is highly compatible with Arduino. If your application requires greater distances or a different communication protocol, you would need to look at alternatives. Also, consider the operating voltage, which for this unit is 5V. Grit / Spec Guide This section is not applicable to this product. Care & Safety Ensure the sensor is powered correctly at 5V to prevent damage. When handling, avoid touching the infrared emitter and receiver lenses as this can affect accuracy. Keep the sensor free from dust and moisture to maintain its high precision performance. Always follow standard electronics safety practices when connecting to an Arduino or other circuit.