The entire board radiates heat, and the IR transmitter LED may briefly glow very brightly before burning out. 3. Short Circuit on the OUT Pin
The module is a compact infrared obstacle avoidance sensor, typically found on a small PCB measuring about . Its primary function is to detect the presence of an object in its path by emitting and then looking for reflected infrared light. It is widely used in robotics for collision avoidance, in industrial settings for object counting, and in DIY projects for presence detection.
Here are some tips and tricks to help you get the most out of your FC-51 IR sensor: fc 51 ir sensor datasheet hot
const int sensorPin = 2; const int ledPin = 13;
The FC-51 features a simple 3-pin male header layout. This layout allows for seamless prototyping with standard jumper wires. : Power supply input (3.3V to 5V). GND : System ground (0V reference). The entire board radiates heat, and the IR
If connecting to an Arduino, ensure it is plugged into the or 3.3V pin, not the VIN pin (which outputs raw input voltage).
Her colleague, Alex, nodded in agreement. "I recall reading about a similar issue online. Some users reported that the FC-51 can get pretty hot when used in high ambient temperatures or with high-intensity IR sources nearby." Its primary function is to detect the presence
The FC-51 module relies on three primary hardware components, any of which can become the source of heat:
: When an object moves within the tuned detection zone, it bounces a portion of the IR energy back toward the module.
While the FC-51 is a fantastic sensor, it's not without its limitations. Being aware of these will help you design more reliable projects.
2cm – 30cm (adjustable via the onboard potentiometer). Detection Angle: 35°.