An image capture user interface receives an image of an area of a user interface selected by a user and translates the image into operations performable by a computer. The semiconductor device has a cell region and a peripheral region formed outside the cell region. During a predetermined time interval after the propulsion request has ended or been reduced, the mechatronic brake booster is operated at a minimum intensity such that no braking effect occurs during the predetermined time interval, unless a braking request occurs. The solar collecting unit has a bottom plate, a heat-absorbing plate, a brace plate and a transparent panel. The device includes at least one control device for switching on the functional group that is exclusively dedicated to the device, parts for connection to the electricity network and parts for connection to at least one main controlled appliance.