Counter

How it works

• It counts loose things that push past its flap, in either direction.
• Lamps on its head light up one by one. When the count is reached, it switches its colour's power on for good.
• Things must push the flap aside. A ball that is too slow stops and rolls back.
• Water does not count. A wind-up toy drives straight through.

Tips

• Give slow balls some speed so they can push the flap aside.
• A train of touching balls counts each ball.

Where you'll meet it

You first meet it in level 135, Timetable, in chapter 14, Smart Circuits.

Works with

• Conveyor
• Tennis Ball
• Steel Ball
• Wind-Up Toy
• Trapdoor