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KY033 TCRT5000 Sensor

KY033 TCRT5000 Sensor

₹39.00Price

🧩 Overview

  • Single-channel infrared reflective sensor module

  • Based on TCRT5000 IR emitter + phototransistor

  • Used for line detection & object sensing

  • Compatible with Arduino, ESP32, Raspberry Pi

⚙️ Working Principle

  • IR LED emits infrared light continuously

  • Surface reflects IR light back to phototransistor

  • Output depends on reflection:

    • ⚫ Black surface → LOW reflection → HIGH output

    • ⚪ White surface → HIGH reflection → LOW output

  • Comparator converts signal into digital output

👉 Detects contrast between surfaces (black/white lines)

📊 Key Specifications

  • 🔹 Operating Voltage: 3.3V – 5V

  • 🔹 Current Consumption: ~20mA

  • 🔹 Output Type: Digital (HIGH/LOW) + sometimes Analog

  • 🔹 Detection Distance: ~1mm – 8mm

  • 🔹 Sensor Type: TCRT5000 reflective IR sensor

  • 🔹 Comparator IC: LM393

  • 🔹 Dimensions: ~4 × 1 cm

🔌 Pin Configuration

  • 🔴 VCC → 3.3V / 5V

  • GND → Ground

  • 🟡 OUT / S → Digital signal output

👉 3-pin simple interface

🧱 Module Components

  • TCRT5000 IR sensor

  • LM393 comparator

  • Sensitivity adjust potentiometer

  • Indicator LED

  • Mounting holes

🔄 Features

  • Adjustable sensitivity via potentiometer

  • Fast response time

  • High reliability & stability

  • Compact and easy to mount

  • Strong anti-interference capability

🛠️ Applications

  • Line follower robots 🤖

  • Edge detection systems

  • Obstacle detection

  • Encoder / position sensing

  • Object proximity sensing

⚠️ Usage Tips

  • Keep sensor 2–5 mm above surface

  • Calibrate using potentiometer

  • Use black tape on white surface for best results

  • Avoid strong sunlight (IR interference)

  • Use stable power supply

✅ Advantages

  • Very low cost

  • Simple to use (plug & play)

  • Fast detection

  • Widely used in robotics

⚠️ Limitations

  • Works only on contrast surfaces

  • Affected by ambient IR (sunlight)

  • Short detection range

  • Needs calibration

🔍 Summary

  • A single-channel IR line tracking sensor

  • Uses TCRT5000 reflective technology

  • Outputs digital signal for line detection

  • Ideal for robotics, automation, and DIY projects

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