A display controller for use within an electronic device includes a dedicated memory and a low power display processor for displaying information when the electronic device is operating in a reduced power mode of operation. The valve arrangement comprises at least a low-pressure change-over valve, a check valve for combining discharge flows of both pumps, and a system pressure-limiting valve. If the measured plant temperature is greater than the setpoint temperature, and humidity is not restrictive to plant cooling, then irrigation can be triggered to retain the plant within the desired stressed level, as determined by the temperature of the plant. In various embodiments, the hermetically encapsulated cavity is further formed from the first hermetic coating, and at least one of the set of metal interconnects, or a second hermetic coating deposited onto the set of metal interconnects.