You will agree with the fact that it is indeed a herculean task to build a complex application, more so when it concerns the use of IoT hardware and software. However, you have ample opportunities that come in the form of development kits and tools that will help you come up with the best practices to build an IoT solution.
Certainly, IoT is the latest buzzword that is doing rounds in the internet-driven space. Going by the numbers, in 2015, there were 15.41 billion IoT connected devices which have now grown to 26.66 billion and it is expected to surpass 75 billion devices by 2025. Majority of these devices are used in the healthcare industry or business/corporates and manufacturing industry.