connect without paring

[chd]

Hi,

My application has 2 service. 1 service requires encryption but the other does not. As per my current implementation (ref from example code), the peer always performs paring procedure when connecting. My question is, is there anyway that I can let the peer connects with my device without paring, and this peer can only see unencrypted service?

Thank you for any help!

[Hung Bui]

@Chd: If you don't request encryption from the peripheral, the pairing request would come from the central only if it receive insufficient authentication error when reading the characteristic that require encryption.

Which central device did you use ? If you use the phone, you can avoid pairing by not reading the characteristics that require encryption.

If you are using S120 and use the SDK example, you can simply remove the dm_security_setup_req() in main.c to avoid initiate bonding.

[chd]

@Hung Bui: My central device is an iPhone. However, I use iOS Bluetooth settings menu to trigger the connection and there is always a popup menu asking for the paring approval which is what I don't like.

[Hung Bui]

@chd: Don't use that, when you select a device in Bluetooth setting, you are requesting to bond with that device. Use your app to connect to the device.

[chd]

The problem is that i dont have an iOS app. So there is no workaround solution for my case?

[Hung Bui]

@chd: We have several example app with source code that you may want to try. It should be pretty straight forward. I would suggest you to start with the nRFUart app or the nRFToolbox app. Please have a look here.