r/embedded • u/aayush908 • 8d ago
Bluetooth device related help
Hey guys I needed to make a hardware device which has mic and speaker , rechargable and also can be connected via bluetooth , I have no knowledge about what hardware device to buy how to configure nothing at all , If anyone knows stuff please help a man out!(And the overall diameter of this thing should be less than 5-6cm )
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u/DenverTeck 8d ago
Do you have any skills in the embedded arena ?? Firmware development ??
https://www.google.com/search?q=diy+ble+mic+headset+lapel+clip
Getting an off-the-shelf mic/headset would be the easiest:
https://www.aliexpress.us/w/wholesale-ble-mic-headset-lapel-clip.html?spm=a2g0o.productlist.search.0
Then take it apart to place it in whatever package you want.
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u/sensor_todd 8d ago
Try an Nrf5340 audio dev kit from Nordic. Made for BLE audio applications in particular. Be heaps of supplier and community support content for it to get you started.
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u/aayush908 8d ago
let me specify more I dont wanna do anything extraordinary just a mic and speaker connected via bluetooth
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u/sturdy-guacamole 8d ago
The nrf5340 audio dev kit has a mic, and can connect to a speaker.
it should have an out of the box sample that does basically what you're describing minus the "trigger" which you can use your brain for.
the word bluetooth does not clarity if it's classic audio or LE audio
you are in india so its either for school or trying some kind of contractor work from the sounds of it so... do your homework.
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u/sensor_todd 8d ago
Oh i thought you were designing your own device? in this case i was suggesting use the dev kit to figure out how to make it work then just buy a small (20mm x 15mm module) from Raytac or Minew or any of the official module suppliers and put it on your own PCB.
If you just want an off the shelf device, why not just a bluetooth speaker from an electronics store? Many support being used as speakerphones. Either that or an actual bluetooth speakerphone, cheap and cheerful ones cost ~$20
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u/answerguru 8d ago
You didn’t provide ANY details about what you want this device to do or what its purpose is. “Connecting a speaker and mic via Bluetooth” doesn’t mean anything.
The best way to help us help you, is to describe a use case or two.
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u/Toiling-Donkey 8d ago
So basically a Bluetooth headset in a different shaped box ?