A swing arm support system for automated irrigation systems has a support hub and a means to attach and operate two wheels to opposite sides of the support hub. A system includes a processor that identifies a set of motion signal timestamps, for a plurality of motion cycles in a motion signal indicative of cyclic motion of a moving object, based on a predetermined motion phase of interest and a phase-to-amplitudeslope mapping, wherein the set of motion signal timestamps correspond to a common signal amplitude. The output signal is indicative of droplet characteristics and may be used to calibrate a mechanism that dispensed the droplet. In one exemplary embodiment, the at least one camera also monitors the driver’s head and eye movement, and the operating system initiates an audible alert upon detecting impairment of the driver based upon the driver’s head and eye movement. The novel compounds may be used as part of kits for immunological assays.