The numbers on the left side represent the rows.
Since we don't have access to the book, it's difficult for us to tell which needs to be connected to what shift register, or if the rows or the columns are supposed to have the cathodes/anodes of the display.
Right now, the cathodes are the columns, anodes the rows.
If they were reversed, I would think that you would get no output at all.
Since we don't have access to the book, it's difficult for us to tell which needs to be connected to what shift register, or if the rows or the columns are supposed to have the cathodes/anodes of the display.
Right now, the cathodes are the columns, anodes the rows.
If they were reversed, I would think that you would get no output at all.