hi first of all sorry for my English...
I try find (July 2021) tablet around 8' witch sensor on board.
I can't - also is only couple 10' but they so big.
Only some phones have it but size is 6,6' so for normal use in air I think is not ok.
So maybe some one find tablet or very big phone witch sensor pressure?
I so also info from 2017/2018 about yours own external pressure sensor - did you made it?
If not I can do this... one how many users can buy it?
BTW - maybe at last Peter you decide for software for Apple? all divaces have it on board.