Give the Arbot its 8th challenge: line following.
These TCRT5000-based infrared modules detect the difference between dark and light surfaces — the foundation of every line-following robot. Tape a black electrical-tape track on any floor and race.
Each module
- TCRT5000 IR emitter/receiver pair
- Digital output (HIGH/LOW) — beginner-friendly, no analog reading needed
- Sensitivity adjustment potentiometer
- 3.3–5V, standard 3-pin connection
Why a 5-pack: two sensors make a basic line follower, three make a good one, and the spares cover the inevitable classroom casualties. Mounting a pair under an Arbot chassis is a brilliant extension task for students who finish the standard challenges early.
