Hi! as you can see in our Portafolio, we have done amazing things in the IOT Industry.
With Raspberry PI we developed a complete solution with different layers that read information for different sensors (Air Temp & Humidity, 3-Axis Vibration, 3-Axis Magnetometry, Thermocouple, Infrared Temp) and uploads that information every 2 min in a secure manner using the latest standars (OData + OAuth 2.0), those are the same standars that Google API, Facebook, Twitter uses.
We also have gone for smaller and cheaper microcontrollers like the ESP32 that have bluetooth capabilities and we use them to send information to the Raspberry PI which works as a gateway to communicate with the cloud server.
For Cloud we use Microsoft Azure, and we have develop this great web site that sends SMS & emails to users depending on the threshold they set for every sensor. It has Historical Charts, Tables of Raw data that is exportable to excel.
I would love to talk more about this
Thanks!
Felice