Bluetooth Low Energy

Started by Dr. Nils Rydbeck, Bluetooth was first conceptualized in 1989 and later built by Ericsson in 1994. The name Bluetooth was given after the tenth-century king of Denmark, Herald Bluetooth. The king united Danish tribes and introduced them to Christianity. This name was given to the technology by Jim Kardach in 1997. The name was adopted because the core concept of Bluetooth was to build a system that can connect a phone to the computer. The idea of Bluetooth was supported by Nokia and Intel who were thinking to migrate towards a universally interoperable wireless technology. Later, companies including Ericsson, Intel, Toshiba, Nokia and IBM came together in Lund, Sweden, in 1996 to agree on the foundation of Special Interest Group (SIG). This group is responsible for designing and maintaining the Bluetooth technology. Nowadays, the group is called Bluetooth SIG.

King Herald Blatand was given the nickname Bluetooth because of his habit of eating blueberries.

Bluetooth technology was invented to connect mobile devices to computers over a short distance. It was standardized by IEEE 802.15 working group which describes Wireless Personal Area Network (WPAN) standards. IEEE 802.15.1 defines physical and Media Access Control (MAC) layer specifications for short distance wireless connectivity for Bluetooth. Version 1.0 was developed by the SIG but resulted in interoperability problems which were later fixed in v1.1. The technology was never to be used as a replacement of any wireless Internet technology like Wi-Fi. It was to only use for the limited range and with a limited amount of data. Even though Bluetooth today can transfer a huge amount of data, it is still being used for short distance communication only.