Bluetooth Versions

Version 1.1 and earlier

Since the technology of Bluetooth was introduced in

1998, several specification versions have been

released. Versions 1.0 and 1.0B had too many issues

and problems for manufacturers to develop devices

for Bluetooth. The main issue was the lack of

communication among the devices.

The core specification version 1.1 is the first

successful operating version of Bluetooth. Version

1.1 corrected a majority of the bugs and problems

found in earlier versions.

Version 1.2

Many of the newer Bluetooth devices, such as the

newer cell phones are being sold with the newer

Bluetooth version 1.2. This version offers backward

compatability with Bluetooth 1.1, faster transmission

speeds, received signal strength, and a host

controller interface (HCI) support for 3 wire UART.

Bluetooth version 2.0

It's true that there may be multiple communication

technologies, although they all share one common

trait - faster is better. Bluetooth specialists

realized this, and therefore worked on improving

the speeds of version 1.2. The newest version,

version 2.0 + EDR (Enhanced Data Rate) was

accounced in 2004 and became available in late

2005.

Version 2.0 delivers data transfer rates of up

to three times that of the original version of

Bluetooth. Version 2.0 also provides enhanced

connectivity. With Bluetooth 2.0 + EDR, you'll

be able to run more devices at the same time -

with more efficiency.

Computers and even computer related devices are

expected to be some of the first devices to

encorporate Bluetooth 2.0 + EDR, followed of

course by audio and imaging devices.

Version 2.0 is backward compatible with previous

versions, three times faster, and offers an

enhanced data rate of 2.1 MB a second. It also

offers broadcast and multicast support, along

with a further enhanced bit error rate

performance, making it the best Bluetooth has