I wasn't aware that many phones other than my Galaxy Nexus S (Google version) even had a pressure sensor. It's main value for me has been knee pain prediction; that and watching the pressure drop with the approach of hurricane Lee last year.
As for indoor navigation, I can see the phone integrating the accelerometer output, but that assumes an accurate position fix before going inside a building, with good GPS signals and data connection to a network. I'm one who keeps the GPS turned off mostly for battery life, but also for personal privacy. However, I'd pay for an app that could navigate me to items in a grocery store!
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.