The IoT - Internet of Things systems are gaining nowdays more and more role in the industrial environment as well as in the households, but at the physical layer they still tend to use wired technologies, which could more expensive to implement, than a wireless-based infrastructure, if take into consideration the cost of placing the cables and the connectors.
WiFi is commonly used when the decision is to go for the wireless infrastructure. In case of using WiFi, only the higher computing performance sensors and devices can be used, which are capable of communicating via WiFi. Antoher solution is the bluetooth-based wireless infrastructure. The classic bluetooth was not fully appropriate for this type of usage, beacuse of the limited coverage and due to the limited number of connectabel devices. These limitations were solved with the Bluetooth Low Energy techonolgy.
In this paper I am presenting the main virtue and capability of the Bluetooth Low Energy technology with its advantages and disadvantages. Furthermore I am presenting the basic component and structure of IoT systems.
In a case-study I am demonstrating a Bluetooth Low Energy-based IoT example system (besd on Microsoft’s Azure platform) and its implementation steps, which is deployed in an imaginary industrial environment.