how to connect multiple devices to a single bluetooth module

I do not know if this is the right place to ask, but I have a rn-41 bluetooth module that I can connect with with my phone.
However I want to be able to connect multiple phones to this single module. I am using the amarino class.
I believe the problem is that it gets connected it is undiscoverable for my other phones, anyone knows a way around this?

Thnks in advance

zjel46:
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I believe the problem is that it gets connected it is undiscoverable for my other phones, anyone knows a way around this?

Yes, that is why it is called pairing.

A mega has four tx/rx channels, so it might be possible to have a bluetooth on each.
This might be augmented by using software serial.
Another possibility is to have a master module programmed to sequentially poll for active phones and auto connect, but this still means talking to only one at a time. I think the bluetooth in the car works like this. See Phillipe Cantin.

Thanks for your reply.
I'm just asking why they say "you can connect up to a bluetooth devices simultaneously" where in practice it is only one.
Additionally:
Why can I connect with multiple bluetooth modules via my phone (via the amarino app) and the other way around?;
Connecting to multiple phones with one module without having to switch between connection states.

Is there no possibility to let the module broadcast continuously and listen to the data with various phones? Or maybe create an array of different mac addresses coming from one module? Connecting to a phone--> receive data from bluetooth module --> disconnect --> connect to OTHER phone --> receive data from bluetooth module is not a workflow that I prefer but maybe is my only option. Basically I need continuous streaming of data to multiple phones. Maybe another module you guys know of?

I think they are being a bit fast and loose with language.

I believe the best you are going to get, and it may be quite sufficient, is a sequential polling system. I believe the bluetooth in our Hyundai Getz can handle up to six phones and I understand it works that way, but it stops polling as soon as it realises a phone is active, i.e. only one actual job at a time. I stress that I was only theorising in my previous and I am not aware of Arduino and bluetooth in anything but the plain old one <> one situation.

I think you would be much better off using WiFi. You are immediately replacing a one-to-one system with a one-to-many, the phones should be just as capable in that regard, and web pages on Arduinos are pretty common.

Hmm thanks. I was just reading about multipoint bluetooth modules which may be an suitable?? but wifi could be an option as well.
Guess I'll have to google a bit further.

Still if anyone knows of a bluetooth module that supports connection with multiple devices, please let me know.
Bluetooth is highly preferred for this project.:slight_smile: