Infrared Photoelectric Sensor | 3-80cm Obstacle Avoidance Switch

This E18-D80NK infrared sensor module gives your smart car or robot project the ability to see and avoid obstacles. It works as a non-contact proximity switch by sending out a beam of infrared light and detecting its reflection, providing a simple way to add navigation to your build. Features and Benefits - Adjustable Detection Range - A small screw on the back lets you tune the sensing distance from 3 cm up to 80 cm. This allows you to customize the robot's reaction distance for different environments. - Integrated IR System - The module combines the infrared emitter and detector into one compact unit. This photoelectric sensor is an all-in-one solution for object detection. - NPN Digital Output - The sensor provides a simple high/low signal that's easy for a microcontroller to read. It's compatible with Arduino, making it a popular choice for DIY robot projects. - Status Indicator LED - An onboard LED lights up when an object is detected within the set range. This gives you instant visual feedback for testing and debugging your code. Applications - Smart Car Navigation - Add this infrared obstacle avoidance sensor to a robot car to help it navigate a maze or avoid running into walls. - Automated Systems - Use it as a proximity switch on a small conveyor belt to count items or detect when a part is in place. - Interactive Displays - Create an interactive art installation or display that triggers an action when someone approaches the sensor. What It Is This is a capacitive sensor, also known as a proximity switch, designed for detecting objects without physical contact. It operates at 5V and uses a photoelectric detection method. As an infrared obstacle avoidance sensor, its theory of operation is based on optical sensing. It provides a digital output. This type of electronics module is commonly used in applications requiring reliable object detection within a specific range. Key Uses & Applications This 3-80cm proximity switch is ideal for robot obstacle avoidance, preventing collisions in automated systems. Its 3 cm to 80 cm detection range makes it suitable for various industrial sensor applications where precise object detection is crucial. For example, it can be used for counting items on a conveyor belt, detecting the presence of components in assembly lines, or as a limit switch. Its digital output integrates easily with microcontrollers and control systems. How to Choose When selecting a proximity sensor, consider the required detection range; this E18-D80NK model offers 3 cm to 80 cm. Ensure the operating voltage matches your system, which for this sensor is 5V. The photoelectric detection method and infrared sensor type are key for optical sensing applications. To test a proximity sensor, connect it to a power source and observe its digital output change when an object enters its detection field. Barrel sensors are another common form factor to consider for different mounting needs.