A digital device interface for transferring information between a processor and a control device includes a first serial peripheral interface, e. A corpus of electronically stored information including reference electronically stored information items each associated with a classification and uncoded electronically stored information items are maintained. The peptides may be administered as anti-bacterials, or may be used in food preservation. The shank shaft may be circular so that the shank sleeve can be rotated around the longitudinal axis of the shank shaft.