The floor express
Inventors (Intermediate), mission I9 Signals & Remote Control, lesson 1 of 6.
Hook
The remote sends invisible light. How does the train know what to do?
Fair test
Drive the train from 1, 3 and 5 metres. At what distance does it stop listening?
Bonus challenge
Deliver a “secret letter” from one desk to another by train.
The build
- 🚂 Floor Express: A remote-control locomotive with headlights, a chimney and a log wagon. (level 4 of 5, about 40 minutes, 17 steps)