Pls. place the largest flat side towards the “nail side” also if this “opposite” side of the thumb is used. Such placement on the nail side means that the polarity of the acceleration signal (assuming normal movement of the thumb) will be reversed, but this can be handled by the XXPP.
誤)これをXXPPでどうにかできるでしょうか?
正)これはXXPPで解決できます。