Thanks for sharing this. Great content to start working with 5340 DK
@AudioJunkie792 жыл бұрын
Can I use just one of these kits to pair to a set of headphones? I would like to develop an audio transmitter for legacy devices that don’t have Bluetooth.
@Huderkadurka8 ай бұрын
Does the book also cover sending video over Bluetooth LE? Thank you.
@demoncloud61472 жыл бұрын
This looks cool, I am sad because my nRF5340 boards are the regular type (dev kit and thingy53) without any audio Codec chip, I can't try out this !
@baconsledge2 жыл бұрын
I have been using HC-05 quite a bit. Don’t get much of the nitty gritty from the docs tho. I interface with an 8 pin PIC 12f675, etc.
@NovelBits2 жыл бұрын
Keep in mind, (I believe) the HC-05 is a Bluetooth Classic (BR/EDR) device not BLE.
@androidble62622 жыл бұрын
I learned a lot through your great Videos .. i developped many BLE App Thank you !
@taranagnew4362 жыл бұрын
for the bis (on computer/mobile devices) whenever it gets added, could the devs add a led's to tell witch 1 is right and left (as well as in the hearing aid app?
@balakrishnanOfficial2 жыл бұрын
How does those DK got paired with each other? Is it possible to pair to any external DK which was not configured earlier during build in JSON?
@loggerheadinstrumentsinc10752 жыл бұрын
Which link shows setting up repositories that you mention at 10:18? I see this video being super helpful because Nordic docs assume a lot of knowledge of configuration and their automatic SDK installation does not seem to get you to a point where you can run the demos.
@NovelBits2 жыл бұрын
Yes I do agree. And it wasn’t a straightforward process for me either. I’ll look it up and get back to you. I may have to add the steps to the companion blog post as well.
@NovelBits2 жыл бұрын
So I followed the following instructions for setting up the nRF Connect SDK repo: developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/gs_installing.html And then followed the steps laid out here to specifically set up the LE Audio related configuration: developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/nrf5340_audio/README.html#configuration I may have run into a couple of issues along the way but I don’t quite remember. So if you do, let me know and I will do my best to help.
@adarshcp6132 жыл бұрын
Hai, Very excited about the new LE Audio specifications. Thank you for this amazing video. I was wondering if it would be possible to stream stereo Audio and use microphone at the same standard. A2DP had its limitations. Is there a standard profile to use stereo audio and microphone at the same time in LE Audio?
@NovelBits2 жыл бұрын
Yes. That should be possible with LE Audio. I recommend downloading the free LE Audio book and reading through it. It will give you a much more in depth understanding of the LE Audio profiles: www.bluetooth.com/bluetooth-resources/le-audio-book/
@julia990012 жыл бұрын
Thank you your video has been so helpful:)
@pmull252 Жыл бұрын
Thanks for this great video. However, when enabling CONFIG_AUDIO_SOURCE_I2S=y for all devices in the proj.conf to allow the gateway to send audio from the line-in input instead of via USB, this is extremely unstable in my case. Sometimes only the left earbud plays. Sometimes nothing at all. Sometimes the audio is flickering, and many other issues. Am I missing something else here for this configuration? The USB-based audio mode works perfectly though.
@rarebit94612 жыл бұрын
How do we go about obtaining the LC3 codec license? I'm unsure about who to contact in order to properly update the west manifest with LC3.
@NovelBits2 жыл бұрын
I believe you can create a private ticket at devzone.nordicsemi.com and ask for more information on that. I think that will connect you with the local sales rep.
@fahadkhan4632 жыл бұрын
Hi as always, thanks for the great content! I had a question regarding Bluetooth and I thought that you be the best person who would be able to answer this. I understand that Bluetooth transmitters can save energy by going into deep sleep, but how do we save energy on bluetooth receiver's which receive irregular data and do not know when the data will arrive. for example how do apple air tags preserve battery when they are also receiver and transmitters as well, and can sustain a year on cr2032 like battery I've come across something called like power poll save, but couldn't understand ut
@fahadkhan4632 жыл бұрын
Can you help me out please?
@NovelBits2 жыл бұрын
Fahad, a low-power “receiver” (which I suspect you mean peripheral) in Bluetooth Low Energy has to wake up at specific times when connected to a central. These are called connection events. Keep in mind the communication in a Bluetooth LE connection is bidirectional so there’s no specific transmitter vs receiver. The key is in the low amount of data being transferred and the efficient way of handling the data to allow the peripheral to go to turn off the radio and go to sleep as soon as possible. That’s how they can achieve really long battery life. There’s also a parameter called Peripheral Latency which allows the peripheral to skip connection events, if it does not have any data, without the central considering the connection lost.
@garytrehair2 жыл бұрын
Hi Fahad. I was also struggling with this question. I initially thought a receiver would need to be powered on the entire time to listen for random transmissions but in the case for connected BT LE devices this isn't true. I'm still new to this and learning (someone can correct me if I am wrong) but, from what I understand, the reason a BT LE receiver can be very power efficient is because it is also sleeping most of the time. Let's assume you have a central/receiver device and a peripheral/sender device. In my case I'm using the peripheral to send temperature sensor data to the central device. Once a connection is made between the central and peripheral, the central synchronises a connection interval timer with the peripheral (you can specify the connection interval duration). The 2 devices then power down their radios until the next connection interval period is reached at which point both devices turn their radios on again and the central checks to see if the peripheral has any new data. Once the new data has been transmitted they both power down again until the next connection interval timer has been reached. I think the maximum connection interval time is 4 seconds. Nordic has a great power profiler which you can use to determine the power usage of their chips depending on the various usage scenarios. devzone.nordicsemi.com/power/w/opp/2/online-power-profiler-for-bluetooth-le Assuming a 4s connection interval with a connected central device, you can get as low a 4µA average current!
@dreamEater99 Жыл бұрын
How can I retrieve the LTK from the boards?
@ramkumarkoppu2 жыл бұрын
Is it possible to load audio from MP3 file on gateway instead of audio from USB connected to PC?
@NovelBits2 жыл бұрын
It doesn't look like that's possible at the moment. It seems the only options are USB or I2S
@Daniel-gl3si2 жыл бұрын
I have questions from the consumers perspective. Allegedly Google is going to support le audio with Android 13. How do I know which phones supports LE Audio and which does not? Do all phones with Bluetooth 5.2 are going to support it with android 13? The galaxy A52s supports Bluetooth 5.2, the Galaxy A53 only supports Bluetooth 5.1 for example...
@NovelBits2 жыл бұрын
Hi Daniel, According to some articles online, the phones will need to include newer Qualcomm Snapdragon chipsets to support LE Audio (in addition to running on a Bluetooth 5.2 compliant chipset). www.androidpolice.com/android-13-is-set-to-drastically-improve-bluetooth-audio-streaming/ www.qualcomm.com/products/features/bluetooth-le-audio
@matthedrick70102 жыл бұрын
Good video
@taehyungkim81032 жыл бұрын
Can normal earphones pick up the broadcast from host nrf ?
@NovelBits2 жыл бұрын
Only ones that support LE Audio will be able to do that
@taehyungkim81032 жыл бұрын
Then earphone with BT 5.3 will support broadcast? Or is it different from Audio LE ?
@mohammadafaneh34812 жыл бұрын
@@taehyungkim8103 LE Audio requires at least v 5.2 but the features required (mainly Isochronous channels) are optional features in the specification. So, many Bluetooth devices will be 5.3 or 5.2 compliant but it doesn’t necessarily mean they support LE Audio. They also have to be an LE device and not BR/EDR (Bluetooth Classic). For the broadcast mode specifically, the Bluetooth SIG introduced a new brand called Auracast which should make it easier to identify which devices support the broadcast feature or not (whether it’s a source likes TV or a sink like a pair of headphones).
@CLEOTISJAMES5 ай бұрын
What headphones have this LE Audio?
@NovelBits5 ай бұрын
@pookers2000 most popular ones are the Samsung Buds 2 Pro
@anneallison64029 ай бұрын
The ebook is not for free
@NovelBits9 ай бұрын
The first edition is available for free: www.novelbits.io/introduction-to-bluetooth-low-energy-book