Used in automated washroom dispensers, automatic doors, or touch-free trash cans.
The FC-51 module is designed for simplicity and low power consumption. Below are the absolute maximum ratings and typical operating characteristics. Electrical Characteristics 3.3V to 5V DC Operating Current: ≥is greater than or equal to
It is common to see the FC-51 and TCRT5000 compared, as both are IR-based reflective sensors. However, they are designed for different purposes. Here is a quick comparison: Fc 51 Ir Sensor Datasheet
Mounted on the front or sides of wheeled robots to prevent collisions.
Digital signal (LOW when an obstacle is detected, HIGH when clear) Onboard IC: LM393 Dual Differential Comparator Dimensions: 3.2cm × 1.4cm Mounting Hole Size: 3mm (for easy chassis installation) Pin Configuration and Functionality Used in automated washroom dispensers, automatic doors, or
The module features an onboard IR transmitter (a clear IR LED) that continuously emits a beam of infrared light.
If no obstacle blocks the path, the light disperses, and the receiver detects nothing. When an object enters the detection range, the light bounces back toward the sensor. Electrical Characteristics 3
The phototransistor receives the reflected light, and the onboard comparator compares this signal against the threshold set by the potentiometer.
The module operates based on . An onboard IR LED (the transparent transmitter) continuously emits infrared light. When an object enters the detection range, the light bounces off the object's surface and is captured by the IR receiver (the black photodiode). Go to product viewer dialog for this item. Googlehttps://www.google.com
What or hardware platform you are using (e.g., ESP32, Raspberry Pi, PIC )
| FC-51 Pin | Arduino Pin | | :--- | :--- | | VCC | 5V | | GND | GND | | OUT | Digital Pin 2 (or any digital input pin) |