![]() With potentially hundreds of sensors and devices sending data, WiFi poses too much hassle to set up.Ī drawback of Bluetooth is lower bandwidth, but for many industrial applications this higher bandwidth simply isn’t needed.īluetooth is also useful in a smart home setting. In the Industrial Internet of Things, machines often need to send short bursts of data in extremely noisy environments. Also, because Bluetooth uses weak signals, there’s limited interference and devices can communicate in “noisy” environments. In contrast to WiFi, which we explored in the previous chapter, Bluetooth was meant for portable equipment and related applications therefore excels when you need to connect two devices with minimal configuration. When you put your Bluetooth device in pairing mode to connect it, it’s temporarily becoming the parent so that it can establish a connection and proceeds to connect as the child. Not only can a device be a parent in one piconet and a child in a different piconet at the same time, but the parent-child relationship can also switch. When devices are connected together via Bluetooth, it’s called a “piconet”. The parent transmits information to the child and the child listens for information from the parent.Ī Bluetooth parent can have up to 7 children, which is why your computer can be connected via Bluetooth to multiple devices at the same time. When Bluetooth devices connect to each other (for example, your phone and your wireless speaker), it follows the parent-child model, meaning that one device is the parent and other devices are the children. It is a low power, low range, high bandwidth connectivity option. ![]() Bluetooth has since expanded into a broad variety of applications including Bluetooth headsets, speakers, printers, video game controllers, and much more.īluetooth is also important for the rapidly growing Internet of Things, including smart homes and industrial applications. Invented by Ericsson in 1994, Bluetooth was intended to enable wireless headsets.
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