@Harvey---the proctice comes with using evaluation boards, reference design boards, etc. And call the tech line at the companies that supply these----ultimately, if you can---go to seminars and electronics shows with good tech sessions----the analog mentors are few and far between nowadays
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.