Bluetooth module without pairing

[ljm]

Hello,

actually, i'm searching some reference of Bluetooth module without pairing, i want that the Bluetooth module communicate directly without paring.

Can you give some references please ?

Thanks

[Andrew Neil]

It's not going to be down to a specific module - it's the way you program/configure it.

Pairing isn't mandatory.

https://community.st.com/t5/stm32-mcus-wireless/wireless-peer-to-peer-communication-w-o-user-intervention/m-p/675426/highlight/true#M19103

[ljm]

Hello @Andrew Neil 

Thanks for replying

So that mean BLE doesn't require pairing even for a first connection ( for the first time )? 

Another question please, with your BLE Module can i connect at the some time to many other modules and collect data in the same time ? 

Thanks

[Andrew Neil]

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@ljm wrote:

So that mean BLE doesn't require pairing even for a first connection ( for the first time )? 

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Correct.

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@ljm wrote:

can i connect at the some time to many other modules and collect data in the same time ? 

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That depends on the module, and the application in/using it.

Plenty of modules are available which can do that. It requires more resources, so they won't be the cheapest ones...

[ljm]

Hello @Andrew Neil 

Thanks for replying.

Can you please recommand me some of your product that meets this need ?

Also, My application is used to retrieve data from several tools ... in the case it has no pairing any device can connect and retrieve data?

Thanks

[Andrew Neil]

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@ljm wrote:

Can you please recommend me some of your product that meets this need ?

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I don't have any products.

Perhaps you should speak to your Distributor or ST FAE?

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@ljm wrote:

Also, My application is used to retrieve data from several tools ... in the case it has no pairing any device can connect and retrieve data?

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At the Bluetooth level, yes.

Your application could add features to control this ...

[ljm]

Hello @Andrew Neil 

Thanks for replying 

one last question please, in my application I'm hesitating between using a bluetooth class or bluetooth class, I know the difference is the range, but on the electronics side what's the difference between class 1 and class 2? are there any extra components in class 1? and in terms of price is there any appreciable difference?
Thanks in advance

[Andrew Neil]

That would depend on what module you're using - details will be in the documentation.

[ljm]

hello @Andrew Neil 

in the documentation there is no indication about the difference of block diagram between class 1 and class 2 Bluetooth. 

[Andrew Neil]

Then, presumably, there is no difference.