Here2 barometer


I am building a waterproof drone and I need to use an external barometer.
I have the here2 GPS and I don’t understand how I can use the barometer in it.
I will appreciate any help.


what about Copter 3.6.9 and Plane 3.9.8 ?


Thank you for the answer.
I am now able to use the GPS through uavcan and i can see also the magnometer.
but I don’t know where i can read the barometer and use it as my primary baro…