: Digital output pin that provides a signal based on detection status. Working Principle
The is a versatile and low-cost infrared obstacle avoidance module widely used in robotics, security systems, and DIY electronics . This module, often referred to as the "Flying Fish" sensor, uses a pair of infrared emitting and receiving tubes to detect obstacles within a range of approximately 2 cm to 30 cm . FC-51 Technical Specifications Fc 51 Ir Sensor Datasheet
The FC-51 features a simple 3-pin male header for quick connections. : Power input pin (connects to 3.3V - 5V). GND : Ground pin (0V). : Digital output pin that provides a signal