Digital TTL (Low level when an obstacle is detected, High level when clear) Onboard Comparator: LM393 chip for stable signal processing Dimensions: 32mm × 14mm
By understanding the pinout, electrical characteristics, and the crucial role of the LM393 comparator, you can integrate the FC-51 into your projects with confidence. Whether you are building a robot that navigates a maze or a simple hand sanitizer dispenser, the FC-51 offers a perfect balance of performance and simplicity.
Even a simple sensor like the FC-51 can exhibit issues. Here’s a troubleshooting guide: Fc 51 Ir Sensor Datasheet
Turning decreases the detection distance (lower sensitivity). Calibration Procedure
The IR receiver captures this reflected light, causing its internal resistance to drop. Digital TTL (Low level when an obstacle is
The module features a compact design, an onboard potentiometer for sensitivity adjustment, and a dual-indicator LED system (one for power, one for obstacle detection status). Key Technical Specifications
Black objects absorb infrared light rather than reflecting it. The sensor may fail to detect dark objects unless they are extremely close. an onboard potentiometer for sensitivity adjustment
Suitable for obstacle detection at low to medium speeds (e.g., small robots, conveyor belts).
The use of an IR LED pair allows the sensor to perform well under moderate ambient light conditions.