A toy construction system comprising a plurality of construction elements including one or more function construction elements for performing corresponding functions and including control connection means for communicating with one or more other construction elements; a data processing system providing a programming environment for generating one or more logic commands for controlling the one or more function elements; and an interface construction element comprising first connection means for providing a data-flow connection with the data processing system and for receiving said logic command from the data processing system, a processing unit adapted to convert said logic command into a control signal for controlling a function of said at least one function construction element, and second connection means for providing a control connection with the at least one function construction element via the control connection means of the function construction element, and for outputting the control signal.