Typically open source hardware can provide a good starting point for your own design. Distributors have been providing full schematics and bill of materials for their evaluation boards so you will design in the parts they distribute. For them, the role of open source hardware is to generate more sales!
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.