apologies if this has been posed before - we are just beginning working our way into the subject matter.
We want to add both SW and (light) HW components to a multicopter for safety experimentation, in both indoor and outdoor applications. I’m looking for a reasonably robust commercial multicopter that allows me access to the PX4 SW running on it. It would be perfect if it has expansion ports - but we could work with just a circuit diagram would be OK.
So if I understand correctly you are looking for a kit to get you started with multicopter flying using PX4?
I can recommend this set for development purposes: https://shop.holybro.com/pixhawk4-s500-kit_p1131.html?
It’s midsize, reasonably simple to assemble and quite popular so you have a bigger chance that someone can help you with the setup.
It doesn’t come with optical flow in the kit but you can attach one of the supported modules. https://docs.px4.io/master/en/sensor/optical_flow.html PX4 flow is not the only one, maybe check for a list with someone who knows more about indoor flying than me.
