The FC-51's simple digital output makes it incredibly easy to interface with an Arduino.
Digital output pin. Can hook up to any standard microcontroller I/O pin or trigger a relay module directly. Integrated Indicators & Hardware fc 51 ir sensor datasheet hot
This code reads the digital state of the sensor. If it reads LOW (meaning an obstacle is detected), it turns on the Arduino's built-in LED and prints a message to the serial monitor. The FC-51's simple digital output makes it incredibly
The module runs warm because of the linear regulator and continuous IR LED drive. As long as you can touch it for a few seconds without burning, it’s likely fine. If it smells or exceeds ~75°C, cut power and inspect your wiring. cut power and inspect your wiring.