First things first. Do you need a microcontroller or a microprocessor? These birds of a feather are distinct but inhabit overlapping use cases. Thus, understanding their comparative strengths is a necessary first step.
Microcontroller or Microprocessor: Making the Right Choice
Microprocessors have a single processing core (CPU), typically powerful enough to handle complex applications involving lots of memory. They’re general-purpose oriented. On the other hand, microcontrollers include a CPU, memory, and I/O—enough of each to support single or only a few functions or applications; for example, a medical device or home automation system.