IR Line Follower / Proximity Sensor Module | Compoden
IR Line Follower / Proximity Sensor Module – TCRT5000 Reflective Optical Sensor
The IR Line Follower / Proximity Sensor Module uses a TCRT5000 reflective optical sensor with an IR emitter and phototransistor. It outputs a digital signal when it detects a reflective surface or obstacle within a short range, making it ideal for line-following robots and proximity detection applications. The onboard comparator provides clean digital output, and sensitivity adjustment allows fine-tuning for different surfaces.
Key Specifications
| Specification | Value |
|---|---|
| Sensor | TCRT5000 (IR LED + Phototransistor) |
| Operating Voltage | 3.3V to 5V DC |
| Detection Range | 0.2 to 1.5 cm (adjustable) |
| Output Type | Digital (0 or 1), active low |
| Indicator LEDs | Power (red) and Output (green) |
| Dimensions | 3.2 cm x 1.4 cm x 0.7 cm |
What You Can Build With This
- Line-following robot for Arduino and ESP32 projects
- Tabletop edge detection and cliff avoidance for small robots
- Object counting on conveyor belts using reflective tape
- DIY rotary encoder using a slotted wheel and reflective pattern
Compatibility
This module outputs 3.3V-5V logic levels and works directly with Arduino Uno, Nano, Mega, ESP8266, and ESP32 development boards. For 3.3V boards like Raspberry Pi, use a voltage divider or level shifter on the OUT pin to protect GPIOs. It is commonly paired with motor drivers (L298N, L293D) and microcontroller boards in robotics kits.
Wiring Notes
Connect VCC to 5V (or 3.3V), GND to GND, and OUT to any digital I/O pin. The sensitivity potentiometer adjusts the threshold: turn clockwise to increase detection distance. No external pull-up resistor is needed; the comparator output is push-pull. For best line detection, mount the sensor 0.5-1 cm above the surface.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino Uno?
Yes, connect VCC to 5V, GND to GND, and OUT to any digital pin. Use digitalRead() to get values.
How can I adjust sensitivity for different line colors?
Use the onboard potentiometer. Turn clockwise for higher threshold (black line on white background) or counterclockwise for lower contrast surfaces.
Can I use multiple modules together?
Yes, you can connect several modules to separate digital pins on a microcontroller. Ensure they do not optically interfere by spacing them apart.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items