The sock donning system enables persons of limited mobility to don socks, stockings, and similar footwear without need for excessive bending at the waist andor knee. The user identity may be a network user identity or an application user identity recognized from packets of the application session. An input circuit is operable to rectify an input signal. The method further includes transmitting a first power source voltage of a logic high level to the anode of the plurality of OLEDs as a threshold voltage to compensate a threshold voltage of the plurality of driving transistors, and applying a data voltage to a plurality of pixels as a data writing step turning on a plurality of driving transistors. One clamp has a motorized trolley that provides adjustment needed for handling chassis of widely varying wheelbase.