Q. Can sefira be counted using Morse code or encrypted script?

A. Horav Shlomo Miller’s Shlit”a opinion is that Morse code can not be used since for the purposes of counting sefira it considered communication signs and not a language.(See question 788 in this forum).
He also maintains that encrypted script is not considered for the purpose of sefira as writing, and therefore does not make a difference, even for counting on subsequent days with a brocho. (See question 785).

Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit”a.