So I have took the smb apart and only connected pin 2 and 3 for the data and of course 5v and gnd. But still the same result. The output is not making sense even with the default program.
Could it be the SM5100B needs more power than usb can give it I read about SM5100B need 9v and usb can only give 5v.
Or does anyone have any other pointers?