X3 Line Follower Sensor Module (3-Channel Tracking Sensor)

The X3 Line Follower Sensor Module is a 3-channel infrared tracking sensor used to detect the contrast between a dark line and a light surface (or the other way around). It is one of the most popular building blocks for line-following robots, automation experiments and electronics learning projects. With three sensing channels, it gives a robot more points of reference along the track, which helps it stay centred on the line and take turns more smoothly. It suits hobbyists, students, makers and anyone building DIY robotics or sensor-based projects.

Key features

• 3-channel (X3) layout for clearer line detection and steadier tracking.
• Infrared reflective sensing that distinguishes line from background surface.
• Simple wiring and clearly marked pins for fast hookup.
• Commonly compatible with Arduino, microcontrollers and robot car kits.
• Compact board that fits easily on small robot chassis.

Typical uses

• Line-following and maze-solving robots.
• School, university and hobby electronics projects.
• Automation and conveyor-style tracking experiments.
• Learning sensors, microcontrollers and basic robotics.

How to choose / tips

• Match the channel count (X3 = three sensors) to how precisely your robot needs to track.
• Check that your controller has enough input pins for all three channels.
• Test on the actual track surface and adjust sensor height for best response.
• Keep the sensor face clean for consistent readings.

Why tna W rna

At tna W rna we focus on reliable sourcing and practical components that actually work in your project. Enjoy fast delivery across Egypt and the convenience of cash on delivery, with friendly support if you need help choosing the right part.