A subsidiary of General Motors approached JN White for help in the engineering of a complex user interface component for a parts cart used to optimize the movement of goods between distribution centers and final customers. The user interface component consists of 4 buttons and 16 individual side firing LEDS, which backlight 5 icons and 8 status bars. The customer had significant objectives it was trying to achieve with this interface. It would be exposed to different environments meaning it would need to function in wet weather, resist the intrusion of dust, withstand UV light, be exposed to cleaning solvents/ chemicals, have backlighting that was visible in direct sunlight, have an IP65-rated enclosure to withstand low pressure water jets, be programable to a set sequence to display light indicators, and finally have strong tactile feedback that could be felt while wearing light duty assembly gloves. This was a tall order, but JN White was up for the challenge.