nRF52832-Pi Bluetooth Authentication Error

[Sai Kiran]

Hi

I am trying to connect my nRF52832 DK with Raspberry Pi via BLE. I am able to discover the board on Pi, when bluetooth is turned on. However, I get an error on Pi saying Pairing Failed - GDBus.Error.org.bluez.Error.AuthenticationFailed:Authentication Failed.

On nRF debug terminal, this is the message I get: 

<info> app: Connected
<info> app: Data len is set to 0xF4(244)
<info> app: Data len is set to 0xF4(244)
<info> app: Disconnected

How do I pair these 2 devices?

Thanks 

Sai Kiran

[Sigurd]

Hi,

Not all examples support pairing by default. If you tested e.g. the ble_app_uart example, then that example does not include the Peer Manager, and the example does therefore not support pairing. You should try testing with an example that uses Peer Manager, e.g. ble_app_hrs example.

[Sai Kiran]

Thanks for the info. Is there any way to add Peer Manager into ble_app_uart example. I am trying to send data obtained from UART over Bluetooth to Pi.

[Sigurd]

Yes, it possible. Take a look at ble_app_hrs example to see how the peer manager is added.