I believe everyone is familiar with Bluetooth, but how did Bluetooth come about? Why is it called Bluetooth instead of Yellow Teeth? How has it developed to this day? And what are the future development trends of it and the Internet of Things? Today, let's have a deep discussion together. Bluetooth is everywhere: speakers, wireless headphones, cars, wearable devices, medical devices, even shoes!

In 1996, Ericsson, Nokia, Toshiba, IBM, and Intel planned to establish an industry association to jointly develop a short-range wireless connectivity technology. The development team hopes that this wireless communication technology can coordinate and unify work in different industrial fields like Bluetooth King. Therefore, this technology is named Bluetooth. The symbol of Bluetooth is the combination of the ancient Nordic characters ᚼ and ᛒ, which is the combination of the first letter HB of the Bluetooth king Harald Bl å tan. There are many versions of the origin of this name, one legend is that the king loved to eat blueberries, which caused his teeth to be stained blue; Some historians also speculate that one of the king's teeth had died and appeared blue in appearance.

When it comes to Bluetooth, many people think of WIFI, so why use Bluetooth even when there is WIFI? That's because power consumption and radiation are the drawbacks of WiFi, and the WiFi protocol is designed for high-speed communication. The designed protocol is very complex and consumes a lot of power. We all know that most WiFi devices are plugged in, and for high-speed transmission, the CPU power of the devices is also very high. Next is radiation. The radiation of mobile phones is at the watt level, WiFi is at the milliwatt level, and Bluetooth is at the milliwatt level, or even lower.