LFR Challenge

Tune a line-following robot and guide it around the track. New? Start with Level 1.
❓ What is this / How do I play?
A line-following robot drives itself by reading a black line with little light sensors. You don't steer it — you set it up, then watch it run.
  • Pick a level → press Use recommended settings → press Start.
  • Too wobbly? Lower Speed. Keeps falling off corners? Raise Steering strength.
  • Reach the red F (finish) before time runs out to clear the track.
  • Fewer line-losses + faster finish = more stars and a higher score.