An embodiment of the present invention uses an on-board microcontroller of a household appliance to receive signals from a directionless encoder attached to a knob for receiving user input and processing the signals from the direction encoder according to a control algorithm. More particularly, the invention involves an improved process in which a portion of a loaded solvent is sent through a carbon dioxide absorber instead of to a series of carbon dioxide flash drums. The touchscreen works with the soft keyboard as a form of text input. The communications transceiver may operate alone, with an assisting communications transceiver, or with a non-assisting communications transceiver. The light-emitting element includes a pair of electrodes sandwiching the organic compound layer, which is a co-evaporation layer of an organic compound and the carbonate. The dielectric layer has a smooth upper surface.