A system for determining when one or more jacks on a vehicle have contacted the ground. Each strobe has a charging circuit to charge a capacitor which discharges through a flash tube. Another shutter blade is slidably mounted to the blade-mounting shank of the base plate so that when the opening is fully opened, a part covering the opening is stored in the region of the base plate in its lateral direction. EL element is masked and does not contribute to the pixel brightness. The dried grapes of this new variety are produced on strong woody canes that do not need to be cut from the mother vine to facilitate berry drying. A primary reason and benefit for such minimalistic implementations relate to these discovery functionalities being implemented via a management processor and associated resources of a system on a chip unit as opposed to them being implemented on data processing components of a cluster of nodes.