Fc 51 Ir Sensor Datasheet
The effective detection distance varies based on the reflective properties of the target obstacle. Highly reflective, light-colored objects (like white paper) provide the maximum detection range, while dark, light-absorbing surfaces (like black rubber) drastically reduce the detection range. 3. Pin Configuration
The sensitivity is set too high, or the sensor is detecting its own reflection from ambient surfaces.
Before diving into the datasheet numbers, let's look at the physical interface. The FC-51 module typically has (although some variants have 4, with an extra analog output pin). Fc 51 Ir Sensor Datasheet
To get a more comprehensive and technical overview, I will now open the most promising results. I will open the FC-51 page from elektronik-kompendium.de (result 0), the specifications page from electronics.com.bd (result 0), the leetechbd page (result 2), the Cirkit Designer tutorial (result 5), the "LEAP#806 FC-51 IR Obstacle Avoidance Sensor Module" (result 4), the "紅外線避障傳感器 FC-51 - BotSheet" (result 7), and the "Raspberry Pi Pico: Objekterkennung mit Infrarot-Reflektionssensor FC-51" (result 6). I will also open the "FC-51 Infrarot-Reflektionssensor" page (result 0) and the "IR Infrared 1 - 6mm Line Following Reflective Sensor Module - FC-51RA" (result 0) for comparison. sources provide a good amount of technical details, working principles, pinouts, calibration instructions, and application examples. I will also open the "IR Infrared 2 - 20cm Obstacle Detection Sensor Module FC-51" page from qqtrading.com.my (result 4) and the "FC-51 IR Distance Proximity Sensor Module" from circuitsnepal.odoo.com (result 8). sources provide a good amount of technical details, working principles, pinouts, calibration instructions, and application examples. I will now structure the article. The article will cover an introduction, technical specifications, pin configuration, working principle, calibration, interfacing, practical considerations, applications, pros and cons, and a conclusion. I will cite the sources appropriately. Understanding the FC-51 IR Sensor: A Comprehensive Datasheet and Application Guide
| Parameter | Value | | :--- | :--- | | | 3.3V – 5V DC | | Current Consumption | Approx. 20mA – 30mA | | Detection Distance | 2cm to 30cm (Adjustable) | | IO Interface | 4-pin (VCC, GND, OUT, EN*) | | Output Signal | Digital (TTL Low when object detected) | | Sensor Chip | LM393 Comparator | | IR Wavelength | 950 nm | | Effective Angle | Approx. 35° | | Dimensions | Approx. 32mm x 14mm | | Operating Temperature | 0°C to +50°C | The effective detection distance varies based on the
Absorb IR light. A pure matte black surface may not reflect enough light to trigger the sensor at all, a property frequently exploited in line-following robots where black tape represents a boundary line. Adjusting Sensitivity and Range
Sunlight and incandescent bulbs emit massive amounts of infrared light, which can blind or saturate the IR receiver. Pin Configuration The sensitivity is set too high,
The FC-51 only provides a digital HIGH/LOW signal. It cannot tell you the exact distance to an object; it can only tell you if an object is within its threshold zone. If your project requires precise distance measurement, consider using an ultrasonic sensor (HC-SR04) or a Time-of-Flight (ToF) sensor.