All of the STM32 family is single core today. The minimum high end CPU frequency is 32MHz. So most operations can be handled by a single core processor. With dynamic clocking, you have the ability to control power based on CPU frequency including sleep and stop states. Much easier than to synchronize two processors.
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.