Fc 51 Ir Sensor Datasheet Hot Verified →
From a popular German tutorial, here’s a simple MicroPython script for a touchless switch:
The FC‑51 is reliable for the price, but users frequently encounter a few common issues. Here are the most discussed :
A datasheet is essentially a specification sheet. Here are the key parameters extracted from the official data: fc 51 ir sensor datasheet hot
Connecting the VCC pin to a power source greater than 5V (such as a 9V battery or 12V rail) forces excessive current through the onboard components. The internal resistors cannot drop enough voltage, creating excess thermal dissipation. 3. Current Sourcing Overload on Output Pin
2cm to 30cm (adjustable via potentiometer) Detection Angle: 35 degrees Output Type: Digital signal (0 and 1) Dimensions: 3.2cm × 1.4cm Pinout Configuration From a popular German tutorial, here’s a simple
The FC-51 is a popular, low-cost infrared proximity sensor used for obstacle detection in robotics. Specification 3.3V – 5.0V DC Operating Current ≥20is greater than or equal to 20 Detection Distance 2cm – 30cm (Adjustable via potentiometer) Detection Angle 35∘35 raised to the composed with power Output Type Digital signal (0 or 1) Output Level Low (0V) when obstacle detected; High (VCC) when clear IC Chip LM393 Comparator Pin Configuration VCC : External 3.3V-5V voltage. GND : External ground. OUT : Digital output interface (connects to MCU I/O). How it Works
| Feature | FC‑51 (IR Reflective) | HC‑SR04 (Ultrasonic) | Sharp GP2Y0A21 (Analog IR) | | :--- | :--- | :--- | :--- | | Detection Type | Digital (object present / absent) | Analog (time‑of‑flight distance) | Analog (distance via reflection angle) | | Range | 2 cm – 30 cm adjustable | 2 cm – 400 cm | 10 cm – 80 cm | | Cost | Very low (< $2) | Low | Moderate | | Ambient Light Immunity | Poor | Excellent | Poor | | Works with Transparent Objects? | No | Yes | No | | Best For | Near‑range, binary detection (obstacle avoidance, counting) | Medium‑range distance measurement | Continuous distance sensing | The internal resistors cannot drop enough voltage, creating
Compatible with microcontrollers like Arduino, ESP32, and Raspberry Pi. 2. Comprehensive FC-51 IR Sensor Specifications
FC-51 IR Sensor Datasheet & Troubleshooting Guide: Fixing an Overheating Module