The Dancing birds is built from the Lego Wedo 2.0 educational kit. Rotation from the motor is transmitted using several gears – spur, bevel and belt. At the same time, by changing the type of belt drive, you can clearly see the principle of its operation: in which case the pulleys (and with them the birds) rotate in one direction, and in which case they rotate in different directions.
The set includes step-by-step building instructions and an example of program (in Lego Wedo 2.0 environment).