How does Bluetooth Work?
By Andrew
Bluetooth is a wireless communication technology used globally; originally invented by people at a Swedish company called Ericsson in 1994. Now, no single company owns Bluetooth technology. Instead, a group of companies named the Bluetooth Special Interest Group works together to make the technology better. Ericsson, Intel, Nokia, Toshiba, and IBM make up this group.
Devices that use Bluetooth includes smartphones, headphones, speakers, cars, medical devices, computers, and even toothbrushes.
To send and receive Bluetooth connections, a device must have a particular microchip that has an antenna. It also must have bluetooth software that can process signals.
To send bluetooth signals, devices send low-power signals (at about 1 milliwatt), so it doesn’t use much battery. But, the weak signals limit the range of Bluetooth devices to about 9.144 metres (30 feet).
Bluetooth technology can connect up to 8 devices at the same time within the same 9 metre radius without the devices interfering with each other. That's impressive, given that there are currently billions of devices in the world with Bluetooth capabilities.
