For tablet and smartphone application, Android might have advantage over others since the success of these products are heavily relying on the marketplace. Ubuntu, no doubt, will get some attention. In typical embedded application, memory footprint becomes very critical. The lesser the memory; the better popularity. For this reason, FreeRTOS gets a lot of attention. Commercial OS will likely be around for a while. Defense industry uses might be one of the many primary reason. I am very interested in learning the breakdown of various OS to industries/ applicatons.
OOPS, sorry, I switched colors so your comment is right. I wonder however if those figures (all, no only for uC/OS) refer to effective use or are only "intend to use sometime in the future". I remember a few years ago this issue was raised for this or another similar research.
The success of Android does not surprise me. The programming is very simple. The development tools are really comfortable to use. I think Android will also make its way in user interfaces in the industrial context.
Well the survey would include Contiki if engineers chose to mention it.
This survey indicates that less than 2 percent +/- about 2 percent of engineers are using Contiki.
But as you indicate, engineer usage is not the same as installation base.
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.