I'm awaiting delivery of a M210(been informed that DJI say end of the month but not holding my breath)
I'm involved in agriculture & looking to do research with other sensors.
On the M200 site DJI advertise ONBOARD SDK to allow third party sensors to be connected. How?

There have been a few unboxing videos popping up over the last week so I can't imagine the wait will be too long.

It looks like there's a panel at the back which might allow third party sensors to be connected.

Would be good to know how you get when yours arrives.

Should arrive either tomorrow or Friday
I've seen the connection in the user manual but DJI give no indication of how to physically connect the sensors