I'm coming from the racing drone world and came accross some flight controllers, power modules, etc.  I'm building a long range discovery and have everything except OSD.  Seems a bit confusing all that's out there from N1, N2, N3, iosd, mini, etc.  I'll attach photos of the controllers since I don't know what version or what works with what.  Looking for the inexpensive way to get OSD on my drone.  

I'm coming from the racing drone world and came accross some flight controllers, power modules, etc.  I'm building a long range discovery and have everything except OSD.  Seems a bit confusing all that's out there from N1, N2, N3, iosd, mini, etc.  I'll attach photos of the controllers since I don't know what version or what works with what.  Looking for the inexpensive way to get OSD on my drone.