... than 32floors, each floor input can be binary or Gray code input: 2. Displaying contents:2.1 Customer information ... two buttons,displaying contents includes(B,G,M,F,L,E,0,1,2,3,4,5,6,7,8 ... incremental button to select among(B,G,M,F,L,E,0,1,2,3,4,5,6,7, ... incremental button to select among(B,G,M,F,L,E,0,1,2,3,4,5,6,7, ... enter to modification:set 0 as binary,1 as gray code.4.4 Select to display company LOGO ...