An IR (Infrared) sensor module designed for obstacle sensing and line following, often denoted as “Blue IR Sensor Module,” combines infrared technology with functionality for detecting obstacles and following lines. Here’s a detailed description:
- Technology and Sensing Principle: The module utilizes infrared light to detect obstacles and follow lines. It typically consists of infrared light-emitting diodes (LEDs) and infrared photodiodes.
- IR LED Configuration: Equipped with an array of infrared LEDs that emit infrared light. The emitted infrared light is used to illuminate the surface in front of the sensor for detection purposes.
- Photodiode Array: When an obstacle is present in front of the sensor, the infrared light emitted by the LEDs reflects off the obstacle and is detected by the photodiodes. This detection triggers a response, such as signaling the presence of an obstacle or initiating a course correction.
- Line Following: When used for line following applications, the IR sensor module is positioned over a surface with a visible line or path. The infrared LEDs illuminate the surface, and the photodiodes detect the contrast between the line and its surroundings. Based on the detected contrast, the module guides a robotic or automated system to follow the line accurately.
- Adjustable Sensitivity: Often, these modules offer adjustable sensitivity settings to fine-tune the detection range or line-following capabilities based on the specific application requirements.
- Integration: Designed for easy integration into robotics, automated vehicles, or systems requiring obstacle avoidance and line-following functionality. Compact, lightweight, and versatile, making it suitable for various DIY projects and commercial applications.
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