A suspension has an extending end and the other end. The pixel pattern is formed of pixels of three primary colors consisting of red, green and blue or pixels of three primary colors consisting of yellow, magenta and cyan. The coating composition may further include an aminofunctional siloxane polymer to promote adhesion to metal surfaces when used with needles. The processor determines the state of eye closure, such as eye open or eye closed, based on the number of lines at selected angles. In addition, the computer instructions characterize the first subset as more important than the second subset, based on the key terms and the characteristic data. The microsystem is capable of measuring ocean physical parameters over large time spans weeks, with higher accuracies and resolution and at significantly lower costs that the other sensors currently known in the art.