From the AS-0011 kit, you can build a two-wheeled car that can follow a black line printed on paper (see downloadable content) or even a black insulating tape glued to the ground.
It is fun and instructive for both younger and older age groups.

Specifications:

Preparation time: 40 minutes
Power supply: 3V DC: 2 AA batteries (not included)

The assembly also requires:

- soldering iron and tin,
- side hip pliers,
- knowledge of multimeter or standard value marking of components.