There are scores of commercial and amateur UAV autpilots and UAV
control systems in use today, ranging from military ones costing
millions of dollars to one-off hobbyist projects. Here at DIY
Drones, we mostly focus on those most appropriate to hobbyists. We
include both low-cost commercial autopilots and open-source ones.
To be listed here, however, the autopilot must be commercially
available now or in the near future. We also will focus on
autopilots that members use and like, so if an autopilot isn't
listed here it's because we don't have first-hand experience with
it or do and can't recommend it.