If you look up the Bluetooth® 3.0 specification, you will find that this specification includes three working modes: BR, EDR, and HS (AMP). SIG started with just 5 members, by the end of its first year it reached 4,000 members and nowadays it has more than 30,000.īluetooth®'s goal is to unite devices just like King Harald Gormsson united the tribes of Denmark into a single kingdom.īluetooth® 1.0 was released around 1999, version 2.0 in 2004, version 2.1 in 2007, version 3.0 in 2009, version 4.0 in 2010, version 4.1 in 2013, version 4.2 in 2014, version 5.0 in 2016 and version 5.1 on 2019 (that's a lot of work!).
In 1996, those companies formed the Bluetooth® Special Interest Group (SIG) and it was finally established in 1998. What these companies understood at that time was that to create a short-range wireless link that could be used across different electronic devices, a protocol had to be standardized so that it could be universally applied. In 1994, besides Ericsson, companies like Intel, Nokia, IBM, and Toshiba also had the idea of a short-range wireless link between electronic devices. Bluetooth® is, in essence, a short-range wireless network called a piconet. Lamarr and Antheil wished to create a way to prevent torpedoes guided by radio to be jammed. Bluetooth® is based on the frequency-hopping spread spectrum method, this method was first described in the 1940s by the actress Hedy Lamarr and the composer George Antheil. It operates at the unlicensed but regulated, 2.4 to 2.485GHz band and it uses radios to communicate and establish connections between two or more devices. Haartsen was appointed to develop a short-range wireless connection standard that could replace the RS-232 standard, a wired telecommunications standard that was conceived in the 60s and that is still used nowadays.īluetooth® uses what is known as short-link radio technology. It was named after a renowned Viking and king who united Denmark and Norway in the 10th century, King Harald Gormsson. Jaarp Haartsen at Ericsson in 1994, more than 20 years ago.
The Bluetooth® standard was originally conceived by Dr.
In this tutorial, we will learn how to exchange information between two Arduino boards, the Nano 33 BLE and the Nano 33 BLE Sense, through Bluetooth® Low Energy.
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