To provide an interface device and method of controlling power to achieve reduction in power consumption by presetting the transceiver in the standby state. The puck moves in a puck field of motion on a surface, the field of motion being divided into a pointing region and a function region. The processing system includes a first RFID reader and a Kalman filter. A switching unit is installed, whose controllable outputs are connected with at least some integration electrodes and by which a controllable constant or solid potential can be applied to selected integration electrodes, in order to enable a binning of the electrons that are to be detected onto particular integration electrodes. Thus the aircraft wing retains a unique geometric profile as a usual configuration.