Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
y_sasaki
User Rank
CEO
Re: Bluetooth Smart
y_sasaki   4/8/2014 6:27:18 PM
NO RATINGS
To run TCP/IP (v4 or v6), 802.11 WiFi has definate advantage. It is designed to run TCP/IP from the beginning.

 

802.15.4 Zigbee lagged behind, because of their 128-byte frame length is not efficient to run TCP/IP. They came up with 6LowPAN (compressed / shortened IPv6 header) as temporally solution, later they announced improved 802.15.4g standard to catch up, which can handle up to 2048-byte frame.

 

TCP/IP on Bluetooth has been "adopted chiild". Early LAN profile was disaster and soon abandoned. PAN profile (aka BNEP) was not great success neither (How many people scratched your heads by weird accronyms like PANU, NAP or GN?). Official "IPv support" on BT4.1 is good foundation, but it is still just a foundation. As long as I've read Core Spec 4.1 document, no detail of IP-over-BT specification (such as how to implement IPv6 Neighbor Discovery on BT) defined there. Only two "IPv6" strings found in 2684 pages of doccument.

I'm not deeply involved with Bluetooth stuff. Perhaps well-defined IPv6 over Bluetooth LE specification exists somewhere I just don't know...

docdivakar
User Rank
CEO
Re: Bluetooth Smart
docdivakar   4/8/2014 3:32:46 PM
NO RATINGS
I think Bluetooth 4.1 is a much needed improvement that lays a firmer foundation for devices with IPv6 communication. Bluetooth Smart with the coming addition of IP connectivity may make it fundamental wireless link in the Internet of Things.

MP Divakar

nickhunn0
User Rank
Rookie
Re: BLE
nickhunn0   4/1/2014 4:15:47 AM
NO RATINGS
Low Energy might mean more for an engineer, but it means virtually nothing to the average consumer.  We tried it out and got blank stares back.

y_sasaki
User Rank
CEO
Bluetooth Smart
y_sasaki   3/31/2014 1:02:17 PM
NO RATINGS
In my understanding the brand name "Bluetooth Smart (Smart Ready)" is effort to solve initial confusion between "Bluetooth LE" and "Bluetooth 4.0" as well as compatibility issue. Often misunderstood that "Bluetooth 4.0" = "Bluetooth LE", but Bluetooth mode (BDR, EDR, +HS, LE) are independent from Bluetooth versions. Simple version designation - "Bluetooth 4.0" does not necessary mean it has low power mode (LE), but it COULD have high-speed mode (+HS). In order to clarify Bluetooth product specification, you must write version and mode separately - like "Bluetooth 4.0 BDR/EDR/LE". It is rather handful, not many Bluetooth product catalogs are written in that way.

Worse, "Bluetooth 4.0" product MAY or MAY not have intercompatibility because it could be "Dual mode" or "Single mode". Dual-mode device have BDR (possibily EDR too) and LE mode, but single-mode device have either BDR or LE mode only. Certainly dual-mode devices are compatible, but single-mode BT4.0LE device is not compatible with single-mode BT4.0BDR/EDR device. It is confusing, at least for me.

 

So, Bluetooth SIG decided to give more easy-to-understand designation. "Bluetooth Smart" is single-mode Bluetooth LE device, "Bluetooth Smart Ready" is dual-mode Bluetooth device. "Smart" device works with "Smart" or "Smart Ready" products, but not with legacy Bluetooth product.

prabhakar_deosthali
User Rank
CEO
Blue tooth with energy harvesting?
prabhakar_deosthali   3/31/2014 10:48:23 AM
NO RATINGS
BTLE is good.

But I would like to know if there is a Bluetooth device that can harvest energy required for its own operation.

 

For wearable smart devices such energy harvesting is possible from the body movements or the body heat in my opinion

.

Joel-Teardown
User Rank
Blogger
Re: BLE
Joel-Teardown   3/31/2014 9:15:25 AM
NO RATINGS
I agree, I have always referred to it as BTLE, but Smart it is "In 2011, the Bluetooth SIG announced the Bluetooth SMART logo scheme, intended to clarify compatibility between LE devices." source http://en.wikipedia.org/wiki/Bluetooth_low_energy#Bluetooth_Smart_branding

AZskibum
User Rank
CEO
Re: BLE
AZskibum   3/30/2014 1:18:10 PM
NO RATINGS
I don't know how I missed ever hearing it referred to as "Bluetooth Smart," but from a marketing point of view, I think "Bluetooth Low Energy" or LE works better. For consumers considering fitness gadgets or other wearables, "low energy" is a more attractive sounding feature (long batter life) than "smart." In fact, many consumers probably associate "smart" with short battery life -- as in their smartphones. Yes, they are smart, and because they're so smart, the battery doesn't even last all day.

elctrnx_lyf
User Rank
Manager
BLE
elctrnx_lyf   3/29/2014 11:35:52 AM
NO RATINGS
BLE has become a de-facto standard for many mobile devices, smart watches and wearbles monitoring the health also. This trend will continue and push BLE into many more consumer electronics in the future and may become prominent technology of IOT. inter mobile communication.



Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
5 comments
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Max Maxfield

Recommended Reads From the Engineer's Bookshelf
Max Maxfield
27 comments
I'm not sure if I read more than most folks or not, but I do I know that I spend quite a lot of time reading. I hate to be idle, so I always have a book or two somewhere about my person -- ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...