Abstract: A toy building system comprising a plurality of building elements including one or more function building elements (210) each for performing a corresponding function, and one or more control building elements (400) each for controlling one or more function building elements, each building element including at least one connector for electrically connecting the building element with another building element via a corresponding connector of the other building element, the connector including at least one control signal contact. Each control building element includes a main output connector adapted to output a control signal for controlling at least one function building element; and each function building element includes an input connector for receiving a control signal and is adapted to perform a function responsive to the received control signal. Each function building element further includes an output connector adapted to forward the received control signal.

Abstract: A toy building system comprising a plurality of building elements including one or more function building elements (210) each for performing a corresponding function, and one or more control building elements (400) each for controlling one or more function building elements, each building element including at least one connector for electrically connecting the building element with another building element via a corresponding connector of the other building element, the connector including at least one control signal contact. Bach control building element includes a main output connector adapted to output a control signal for controlling at least one function building element; and each function building element includes an input connector for receiving a control signal and is adapted to perform a function responsive to the received control signal. Bach function building element further includes an output connector adapted to forward the received control signal.