In certain example embodiments, the energy-using component comprises a heater element, and the controlled operation comprises changing an operating state of the heater element between one or more of: an energized state and a deenergized state; a deenergized state and an energized state; or a partially energized state. In certain example embodiments, the changing of the operating state of the heater element is performed based on a dew point computation performed in relation to the comparing of the at least one environmental characteristic of the environment in which the mobile device is located, to the sensed characteristic of the mobile device.
In another example embodiment, a method of controlling fog or frost on a mobile device involves: providing a programmed processor, one or more sensors and an energy transfer element that when activated removes fog or frost within the mobile device; the processor reading the one or more sensors disposed in the mobile device to determine if there is a fog or frost condition; the processor, upon detecting a fog or frost condition, activating the energy transfer element to remove fog or frost; and the processor, upon detecting an absence of the fog or frost condition, deactivating the energy transfer element.