this contains the names of the classes in its assign numbers (ex:0 is Person or 67 is Cellphone )  if set 1 C = 67 then 'C' is sent to the Arduino Serial (see documentation) 1000 means off because there are no data on it
set 1  n = A, B, C, n  1000 is off
0
29
67
Set 2  n = E, F, G, 1000 is off
1000
1000
1000
Set 3 H, I , J, 1000 is off
1000
1000
1000