The Smart Car is built from the Lego Wedo 2.0 educational kit. The drive of the machine is made on a combination of spur and bevel gears. A feature of the model is that the car, when moving, recognizes the appearance of a precipice on the way. For example, if we are talking about movement on the surface of the table. A distance sensor installed in the front registers a precipice, stops the motor and prevents the car from falling off the table.