I recently got a scholarship from Bolt IoT for a course of theirs, after giving a small exam. As a part of the course in IoT, I received a Starter Pack that was home delivered. Here are some pictures !
If I am using the right link https://www.boltiot.com/ it looks like the device is a transport communication infrastructure that can be leveraged by remote devices. Transport meaning it can carry data from an end device back to a central cloud repository and communication meaning methods to talk to the device and control it. In one example they showed a smart phone.
The material should provide a good hands on learning of the layer from device data collection to device data consolidation. It will fill in the heavy lifting involved in assembling and getting this infrastructure to work.