Look at our amazing stand at ToMMF 2019
Here are the slides presented in two past conferences, the IoT conference 2014 and the CloudConf 2016, both organized by Corley.
Click on the post title to open the download link.
In both of this two examples I used Flowcode for the implementation of the embedded side application logic and dweet.io as intermediate server. The overall architecture could be easily applied to a lot of IoT applications.