Why Bluetooth IoT?

November 16, 2021

Before you talk about Bluetooth IoT, let’s start with what Bluetooth is!

What is Bluetooth?

Bluetooth has been in the technology market as a wireless connection channel between devices since it was invented in 1994 by Ericsson. Since then, Bluetooth technology has developed into a wireless connectivity solution for laptops, gadgets, and other devices. Nowadays, you can find Bluetooth everywhere; wireless headphones, cars, wearables, speakers, medical devices, air quality sensors etc. If you have any modern device, it is safe to believe that you have used Bluetooth technology at some point. In other words, Bluetooth is a short range wireless technical medium used to exchange data between two electronic devices over a short distance. This process eliminates the primitive use of cables for connection.

Typically, a master Bluetooth device is able to connect to a maximum of seven devices at a time. And in this technology system, the connected device works in a master-slave relationship. For example, if you initiate a connection between a mobile phone and a wireless headset via a headset. In that case, the phone is the slave and the headset becomes the master. Later, both devices can change roles and let the phone act as a master, while the headset becomes a slave.

Bluetooth technology has evolved from classic Bluetooth to the smart Bluetooth available today, including the latest version Bluetooth 5, which has 4 times the range, double the speed, and 800% more frequency for data transmission than previous versions. These make Bluetooth a smart choice for companies with extensive infrastructure due to the availability of 100% uptime and cost-effective options of Bluetooth 5 IoT devices.

Bluetooth Classic and Bluetooth Low Energy (BLE)

There are two Bluetooth variants of Bluetooth technology; all Bluetooth devices can therefore be divided into two types – Bluetooth Classic and Bluetooth Low Energy (BLE). On the one hand, Bluetooth Classic is commonly used in wireless speakers, headsets, and car infotainment systems. On the other hand, Bluetooth Low Energy (as the name suggests) is more prominent in applications that are concerned about power consumption and transmits smaller amounts of data less often. In other words, BLE is often found in battery-powered devices such as mobile phones, sensor devices, etc. Unlike Bluetooth Classic, which consumes high energy, Bluetooth Low Energy thrives with reduced energy consumption and cost, even while maintaining a similar communication area as Bluetooth Classic.

What is IoT?

As the name suggests, the Internet of Things (IoT) basically means the system behind how things are connected. In more detail, in any case, the Internet of Things refers to the gazillion devices connected to the Internet – which collects and share data worldwide. These devices have sensors, chips , software, and other technology infused into them. These allow them to link and transmit data with other devices and systems over the Internet, with unique identifiers (UIDs), without requiring human-human-computer interaction.

It is important to understand that the term Internet of Things is mainly used for devices that are generally not required to have an Internet connection but can communicate with an Internet network self-sufficiently without human interaction or influence. This is why a Bluetooth device like HibouAir – Air quality monitor, smartwatch, fitness band, or other portable devices are considered to be IoT devices.

How does IoT work?

The Internet of Things network consists of smart devices – that are web-enabled – that use processors, software, and communications hardware infused into them to receive, process, and send data received from their environments. Afterwards, these IoT devices continue to share sensor data collected from their connections to an IoT gateway or other edge device, through which data is sent to the cloud or necessary channels for further analysis. Sometimes, these devices communicate with other connected devices and act on information generated from each other. While these devices go through all of these processes without human participation, people can still interact with the devices to set up commands or instructions, or access data collected over time. 

Bluetooth and IoT

Despite its common uses, Bluetooth has become a household name in the Internet of Things community. It is an important technology used for IoT applications. Since a device-to-device connection is expected to be fast, seamless, and wireless in the Internet of Things, Bluetooth (Bluetooth IoT) is highly prefered due to its no internet function. On the one hand and its ability to create large-scale device networks via Bluetooth mesh.

Why Bluetooth in IoT?

Bluetooth Low Energy in IoT can help IoT devices save energy by keeping the devices idle when not in use, then letting users leave the mode when connected or reconnected. Bluetooth Low Energy in IoT is perfect for IoT applications because, unlike the classic Bluetooth applications, which reconnect to devices in a time of six seconds or more, IoT BLE applications can be quickly connected and reconnected to devices in six milliseconds instead.

In IoT BLE, a device can operate in three steps; Advertising, Scanning and Connected. In a scenario where you want to integrate two BLE devices with each other, one device must advertise. In contrast, the other must search for the device’s advertising before it then initiates a connection. Advertising means broadcasting packages that allow another scanning device to find them.

Bluetooth IoT applications

Without a doubt, developers have been able to introduce Bluetooth-powered devices that can work with Bluetooth IoT applications. Bluetooth Low Energy application developers have been using different tools and programming languages to develop their applications. BleuIO, a Bluetooth Low Energy USB dongle, helps you make BLE applications and projects in the fastest and easier way. Devices such as remote controls, smart home devices, wearables, tracking devices, keyboards, among others, have been developed to limit stress and the financial consequences of users often having to change batteries due to energy-saving Bluetooth applications and energy-saving models used. In addition, Bluetooth IoT applications such as asset tracking, indoor location, Air quality monitoringbeacons, industrial automation sensors, tire pressure gauges, electronic shelf labels, etc., used in industrial and enterprise solutions, will also reduce ownership and maintenance costs as battery replacement is eradicated. 

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