ignoring the range limitations what would it take to create a Bluetooth mesh audio communication device? this would be a device used by people practically sitting next to each other or at an extreme 20 yards or so . I don't want everyone to be connected to each other by a wire. I would like to avoid using radios so that there is less possibilities of interfering with someone else or being interfered with by someone else.
use case idea is that have this device that can have up to (x) amount of people connected to it (would also need a way to pair to each other or atleast password protect) and talk to each other in loud environments like race tracks or gun ranges. I want to avoid wires so that if one person in the group needs to get up and go somewhere they don't have to deal with wires or remove their hearing protection.
I understand this is likely a half baked idea but it's been bouncing around in my head for a while now. apologies if there are terms I have butchered, I am a mechanical engineer not a software engineer so this is a whole new world to me but I want to give it a shot.
That is well outside the range typically quoted for Bluetooth (10 m), and voice communications are probably out of the question for amateurs, since Bluetooth is packet-based.
Text messaging using the open source RadioHead library (RHMesh) is pretty straightforward (for a reasonably skilled programmer) and up to 10 or so nodes. See GitHub - jremington/Feather-LoRa-Networks
LoRa radios are not required for such short distances. I understand that there are similar open source Bluetooth network libraries that could be used for text messaging.
I thought 20 yards would be a small enough distance to avoid this issue. the real use case the person is sitting next to me so let's say 2 feet. and if that is still too long then let's say 2 micron.
i have a headset on my motorcycle helmet that is capable of long range (mine doesn't need to be long range) private mesh communication and I assume someone at some point has created their own version of it.