| | FC-51 | TCRT5000 | | :----------------- | :-------------------------------------------------- | :------------------------------------------------- | | Primary Use | Obstacle Avoidance / Proximity | Line Following / Reflective Sensing | | Typical Range | 2cm - 30cm | 1mm - 8mm (very short range) | | Output | Digital (HIGH/LOW via LM393 comparator) | Analog (reflected light intensity) | | Best For | Detecting objects at a short distance | Distinguishing between black and white surfaces |

Wiring is identical; the OUT pin can be connected to any GPIO. For ESP32, ensure your code uses the correct pin mode:

The FC-51 IR sensor is a versatile and widely used infrared sensor module. Understanding its datasheet and features is essential for successful project development. When searching for "FC 51 IR sensor datasheet hot," users should consider the sensor's heat emission and high-temperature performance. With its compact size, low power consumption, and adjustable detection range, the FC-51 IR sensor is an excellent choice for various applications.

VCC → 5V, GND → GND, OUT → D2

If you are stuck with the FC 51 but need stable performance, apply these fixes.

Are you trying to (like a flame) with it?

delay(500); // Cool-down period

delay(200);

The is a common infrared (IR) obstacle avoidance module typically used for basic proximity detection. Because it is a "hobbyist-grade" component, a single formal scholarly paper focused solely on its datasheet is rare. However, the most relevant academic research for this specific module is a very recent paper (December 2024) that analyzes its performance limitations. Featured Academic Paper