Measuring g with an Arduino micro-controller in a simple free fall experiment: http://arxiv.org/abs/1511.08231

Alexandre C. Tort
(Submitted on 24 Nov 2015)
A simple way of measuring g in the basic lab with a an Arduino micro-controller is discussed. Experimental results are obtained and compared with values provided by the National Observatory, Rio de Janeiro. Our relative error is 0.1 %.
Comments: In Portuguese. Soon an English version will be available