Description
KY-033 module uses an IR transmitter and receiver that will detect how reflective the surface is in front of the module.
It has a potentiometer to adjust the sensitivity of the module so it can detect if the surface is black or white.
The obstacle avoidance sensor is distance adjustable, the ambient light sensor is adaptable, high precision, and has a pair of infrared transmitters and receivers.
The KY-033 Line Tracking Sensor Module is an infrared reflective sensor designed to detect black and white surfaces, making it ideal for line-following robots, path detection, and surface contrast sensing with Arduino, Raspberry Pi, and other microcontrollers.
This module outputs a digital HIGH or LOW signal depending on whether it detects a dark or light surface, allowing precise control for robotic navigation and automation projects.
- Module: KY-033
- Function: Infrared line tracking sensor
- Output Type: Digital (HIGH/LOW)
- Operating Voltage: 3.3V – 5V
- 3-Pin Interface: VCC, GND, DO (digital output)
- Detection Range: Surface reflective distance approx. 1–10 mm
- Module Size: Approx. 42mm x 11mm x 12mm
Key Features:
- Module: KY-033
- Function: Detects black/white surface contrast using IR reflection
- Output: Digital signal (HIGH or LOW based on surface)
- Voltage: 3.3V – 5V
- Interface: VCC, GND, DO
- Compact, breadboard-friendly design
- Compatible with Arduino, Raspberry Pi, ESP32, etc.
What’s Included:
- 1x KY-033 Line Tracking Sensor Module
Great For:
- Line-following robots
- Path detection and automation
- Surface color contrast sensing
- Robotics navigation projects
- STEM educational kits
- DIY robotics and prototyping
Usage Tips:
- Use digitalRead() on the DO pin to detect line presence
- HIGH or LOW output depends on black or white surface detection
- Ideal for mounting underneath small robots or vehicles
- Calibrate sensor height and sensitivity for best results
- Combine with motor control modules for full line-following robots
