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KY-010 Broken Light Blocking Sensor

KY-010 Broken Light Blocking Sensor

₹40.00Price

🔦 KY-010 Broken Light Blocking Sensor

🧩 Overview

  • Optical (infrared) beam break sensor

  • Detects objects by interrupting a light beam

  • Compact U-shaped slot design

  • Widely used in Arduino, ESP32, and robotics projects

⚙️ Working Principle

  • Contains IR LED (emitter) on one side

  • Contains phototransistor (receiver) on the other side

  • IR beam continuously travels across the slot

  • When an object blocks the beam → signal changes (triggered)

  • Output used for detection/counting

👉 Acts like a digital switch based on light interruption

📊 Key Specifications

  • 🔹 Operating Voltage: 3.3V – 5V

  • 🔹 Output Type: Digital (HIGH/LOW)

  • 🔹 Interface: 3-pin (VCC, GND, Signal)

  • 🔹 Slot Gap: ~5 mm

  • 🔹 Dimensions: ~18.5mm × 15mm

  • 🔹 Current: < 45 mA

🧱 Module Components

  • Infrared LED (emitter)

  • Phototransistor (receiver)

  • Resistors (1kΩ & 33Ω)

  • 3-pin header (VCC, GND, Signal)

🔄 Features

  • Fast response and high sensitivity

  • Simple digital output

  • Small, lightweight, and low cost

  • Easy plug-and-play interface

🛠️ Applications

  • Object detection systems 📦

  • Speed measurement (rotating wheels) ⚙️

  • Encoder systems

  • Slot-based counting machines

  • Robotics & automation projects 🤖

⚠️ Usage Tips

  • Place object inside the slot gap for detection

  • Avoid strong sunlight or IR interference

  • Ensure proper alignment of emitter & receiver

  • Use debouncing in fast applications

✅ Advantages

  • Simple working principle

  • Reliable for precise interruption detection

  • Easy to interface with microcontrollers

  • Low cost

⚠️ Limitations

  • Works only within small slot gap (~5mm)

  • Sensitive to ambient infrared light

  • Not suitable for long-distance detection

🔌 Pin Configuration

  • 🔴 VCC → 3.3V / 5V

  • GND → Ground

  • 🟡 Signal (DO) → Digital input pin

🔍 Summary

  • Detects objects using IR beam interruption

  • Outputs a digital signal when light is blocked

  • Ideal for counting, positioning, and motion detection

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