Bluetooth Low Energy: A New Connectivity Revolution
The first Bluetooth Low Energy chips have been made, and a new Bluetooth revolution is on its way. Bluetooth Low Energy offers an entirely new set of applications that will to change our lives for the better.
What is Bluetooth Low Energy?
Bluetooth Low Energy is pretty much what it says on the tin. It
is a new Bluetooth protocol that is built on the standard
Bluetooth protocol but uses incredibly small amounts of
electrical energy; so little in fact that a device will be able
to operate for a full year using only one tiny button cell.
How long has it been around?
Although the very first Bluetooth Low Energy chips to be
manufactured appeared in April 2009, the concept has been around
for a couple of years and it has been called different things.
When the Bluetooth Special Interest Group (SIG) first came up
with the concept it was called Wibree. Later it was renamed as
Ultra Low Power (ULP) Bluetooth Technology, and it acquired its
current name in 2009.
SUMMARY
Bluetooth Low Energy is embodied in
the Bluetooth 4 protocol announced recently by the Bluetooth
Special Interest Group (SIG)
The major features are:
- Ultra-low peak, average and idle mode power consumption
- Ability to run for extended periods (years) on standard button batteries
- Low cost
- Interoperability between vendors
- Enhanced range
There are two implementations: single-mode and dual-mode:
Dual-mode implementation
Bluetooth low energy functions are integrated with standard
Bluetooth chips. All the features of standard Bluetooth
including Bluetooth V2.1 + EDR or Bluetooth V3.0 + HS are
available along with the new Bluetooth Low Energy functions at
essentially the same cost as conventional Bluetooth.
Single-mode Implementation:
These are single low cost Bluetooth Low Energy chips which
provide a Link Layer with ultra-low power idle, simple device
discovery, and point-to-multipoint data transfer including
power-save and updated security.
Author: Gary Shorthouse
Comments
6 comments (post your own)\ \
quick@m1.cosmos.ne.jp
Bluetooth technology is one of the easiest wireless way to transfer files. That’s why when I choose a phone, I always look if that phone has a bluetooth feature.Regards,William
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