Silva OHM da, Schmidt LF, Laburú CE. Proposal for experimental activity for studies of frequency of a time marker using arduino. Cad. Bras. Ens. Fís. [Internet]. 2021 Mar. 25 [cited 2024 Oct. 19];38(1):446-58. Available from: https://periodicos.ufsc.br/index.php/fisica/article/view/73810