The Internet of things (stylised Internet of Things or IoT) is the internetworking of physical devices, vehicles (also referred to as "connected devices" and "smart devices"), buildings, and other items-embedded with electronics, software, sensors, actuators, and network connectivity that enable these objects to collect and exchange data [1]. One of the first kits for IoT experiments was the so-called "Wunderbar" of the German company relayr [2]. This wunderbar consists of several sensors (the "Things") which transmit their data via BLE to a local (typical BLE range is 10m) IoT module (embedded computer with a CPU, WiFi, and BLE) which is part of a local WLAN. Through this WLAN it is also part of the internet (the second part of IoT).
If you buy the Wunderbar, it comes with firmware which allows onboarding (the discovery process) and data transfer via MQTT to the "relayr Cloud". Since the firmware has been open sourced, it is now possible to change it to use the LRZ Cloud [3] instead of the relayr Cloud.
[1] https://en.wikipedia.org/wiki/Internet_of_things
[2] https://relayr.io/wunderbar
[3] https://www.cloud.mwn.de, http://www.lrz.de/cloud
Aufgabensteller:
Prof. Dr. D. Kranzlmüller
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