I’ve used the really sweet Arduino prototyping platform to construct a high precision, low latency tapping board to be used when measuring finger tapping. The details are found in this technical report.

Abstract

This technical report describes the construction of a tapping board to be used in sensorimotor synchronization tasks where the timing of participants’ taps are to be registered. The tapping board is designed to be comfortable to use and to register taps with millisecond accuracy.