Launchpad Pro will respond:
! !
Launchpad Pro >> Host:
F0h 7Eh <device ID> 06h 02h 00h 20h 29h 51h 00h 00h 00h <firmware revision 4 Bytes> F7h
(240,126, <device ID>, 6, 2, 0, 32, 41, 81, 0, 0, 0, <firmware revision 4 Bytes>, 247)
The firmware revision number is represented by four bytes, where revision 138 would be given as
00h, 01h, 03h, 08h.
!