How can I evoluate my connection BLE to a pairing connection?

[CME]

I'm beginner in the bluetooth environment so I don't understand everything in it.

For my project, I need to develop connection betweeen a BL652 and a smatphone.

In a first time, I achieved to program a connection between my BL652 and a smartphone without protection like pairing so without passkey.

I would like to evoluate my development to a Pairing connection with a keypass! Someone are some examples of it or to drive me in the different steps to realise that?

Thanks for your help

[Kenneth]

Hi,

I think the answer depends a bit on which development environment you are planning to use. For instance since you are planning to use the BL652 I believe they have their own smartBASIC programming language:
https://www.lairdconnect.com/wireless-modules/bluetooth-modules/bluetooth-5-modules/bl652-series-bluetooth-v5-nfc-module

In that case you need to refer to Laird on how to setup and use passkey.

If you are interested in the Nordic nRF5 SDK, then there is one example for blood glucose example that show usage of passkey:
https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.0.2/ble_sdk_app_gls.html

Though I recommend to start with the getting started and read up on BLE before you start with that example.

Best regards,
Kenneth

[CME]

Thanks for your help now I can put a passkey by how can I put the passkey at every connection because now, when I try to connect my phone, it etablishes automaticcally with the BL652? There is a memory?

Because I thought that this instruction " advertising_start(erase_bonds);" allows to erase mobile which tried to connect to the module, right?

[Kenneth]

You are only able to erase bonds on the BL652 that way, the phone may still have the bond and may thereby automatically re-connect.

Best regards,
Kenneth

[CME]

ok, but if I don't want to allow this re-connection I need to manage the whitelist? It's the list with the different apparels?

Best Regards,

CME

[CME]

I have an other questsion because in the example, the passkey is random? If I want to fix the passkey like when you unlock your phone, I don't understand how the passkey is created so how can I fix it...

[CME]

My last question is : in the example glucose, where is generated the passkey (6 digits)?

[Kenneth]

The passkey is randomly generated on each bonding, it is possible to also set a fixed passkey, you should find threads here on devzone by searching for "static passkey devzone" on google for instance.

Kenneth