Introduction to Bluetooth Low Energy

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Nordic Semiconductor

Рік тому

Bluetooth Low Energy is an ubiquitous technology that provides interoperable wireless connectivity to battery-operated devices. Yet it doesn't stop there. With the latest adoptions, Bluetooth LE offers higher throughput, longer range and direction-finding capabilities. In addition, LE Audio is just around the corner.

This webinar recording introduces the Bluetooth Low Energy wireless technology.

Content:
- Basics
- Architecture
- Topology and roles
- Security
- Throughput and range
- Direction Finding
- LE Audio

We had two webinars on the same topic on May 14, 2020. This is the recording of the presentation from one of them, but includes Q&A sessions from both.

Learn more about our Bluetooth Low Energy SoCs: bit.ly/3kyL3lF

The presentation used in this webinar can be downloaded from DevZone: bit.ly/3pCfNGu

КОМЕНТАРІ
Oid Polar
Oid Polar 4 місяці тому
If Mbps is mentioned then KBps has to be written instead
Oid Polar
Oid Polar 4 місяці тому
8 symbols per bit? Perhaps the vice versa: 8 bits per symbol? Otherwise the grass is too green in your town ;-)
Dave Thompson
Dave Thompson 2 місяці тому
It’s all about extending the range (distance) within a fixed power limit. So yes, using more of the time band and sending data slower. Seems like the SNR or possibly multipath variation is that much worse that they need to do this, to get a signal at all. The coding methods you suggest probably require higher SNR than they have. See p169 of the Bluetooth spec www.mouser.it/pdfdocs/bluetooth-Core-v50.pdf Not a poor choice more like a trade off at extended range.
Oid Polar
Oid Polar 2 місяці тому
@Dave Thompson 8 modulations per bit? It sounds like a huge waste of carrier band. Encoding Reed - Solomon is even better. I'm in doubt it's implemented so badly. I feel you are very much wrong
Dave Thompson
Dave Thompson 2 місяці тому
No, I think it’s correct. 8 rf symbols on the physical layer are required to send 1 bit in long range mode. Or you could say 0.125 bits per symbol.
Marcel YOB
Marcel YOB 5 місяців тому
THANK YOU very helpfull!
Djlevor
Djlevor 9 місяців тому
Why can I not find any Bluetooth 5.2 Transmitters or Receivers for sale? I know that the chips have been available for a while now, does anyone know where I can get a BT 5.2 Transmitter or receiver?
Nordic Semiconductor
Nordic Semiconductor 9 місяців тому
Both the Nordic nRF52 and nRF53 series devices are Bluetooth 5.2 compliant, but the full specification for LE Audio (which is the main new feature in Bluetooth 5.2) is not yet released by the Bluetooth SIG. For this reason we don't yet have any Bluetooth stacks that support 5.2, and it is not yet possible to create end products based on this technology.
Nathan Almeida
Nathan Almeida Рік тому
Thank you for this Great content!
Stefany Sanchez
Stefany Sanchez Рік тому
This is just superb, been searching for "proximity beacon" for a while now, and I think this has helped. Have you heard people talk about - Norajon Proximity Packthread - (Have a quick look on google cant remember the place now ) ? Ive heard some decent things about it and my mate got amazing success with it.
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