Here I have AgOpenGps controling an ISOBUS lime spreader on non ISOBUS tractor.
AgISOVirtualTerminal on the second tablet.
AgOpenGps can now be one built from the develop branch, it has been added officially (but it will not be in the future 6.8 release)
It also need an ISOBUS app on the AOG tablet.
Each tablet has an CAN-USB adapter.