SmartElex RLS05 Line Follower Sensor

Description

SmartElex RLS05 Line Follower Sensor

The SmartElex RLS05 Line Follower Sensor is a compact and easy-to-use module designed to help robots detect and follow lines on a surface with accuracy. It is ideal for students, makers, educators, and early-stage engineers who are learning robotics or building simple autonomous systems. The sensor simplifies line detection by clearly identifying path contrasts, making it easier to develop reliable line-following behavior without complex circuit design.

This sensor is widely used in line follower robots, educational robotics kits, and automation prototypes where precise path tracking is required. It integrates smoothly with popular platforms such as Arduino, Raspberry Pi, and ESP32, allowing quick setup and experimentation. With dependable performance and straightforward interfacing, the SmartElex RLS05 enables users to focus on coding logic and robot movement, making it well suited for classrooms, labs, competitions, and DIY robotics projects in India.

Pin Diagram:

How to Calibrate SmartElex RLS05 Line Follower Sensor

Step 1: Enter Calibration Mode

Press the calibration button once or pull the CAL pin low for a few milliseconds. When three LEDs (D0, D2, and D4) turn ON, the module has entered calibration mode.

Step 2: White Surface Reading

Place the RLS05 module on a white surface and press the calibration button again. When two LEDs (D3 and D4) turn ON, the white surface values are read and saved in EEPROM.

Step 3: Black Surface Reading

Place the module on a black surface and press the calibration button once more. When three LEDs (D2, D3, and D4) turn ON, the black surface values are read and stored.

Step 4: Select Line Following Mode

To enable white line following, press the calibration button three times within one second. LEDs (D2, D3, and D4) will blink to confirm selection.

To enable black line following, press the calibration button twice. LEDs (D0, D1, and D2) will blink to confirm the mode selection.

Features:

• Five-channel line detection for accurate and stable line following
• Supports both black line and white line tracking modes
• One-time calibration with onboard EEPROM memory
• Easy calibration using onboard push button or CAL pin
• Compatible with Arduino, Raspberry Pi, and ESP32 platforms
• Ideal for robotics projects, educational kits, and automation prototypes