The concern about leaking liquid alloy is a valid one; gallium will diffuse into many other metals, structurally weakening them. Search around for some interesting videos of gallium being used to turn an aluminum soda can into the consistency of a wet paper towel! It's possible that it has a higher affinity for the co-alloy, making this a non-issue, but I haven't a clue if that's the case.
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. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.