Connecting to Pi/Bleno with sd_ble_gap_connect

RE: Connecting to Pi/Bleno with sd_ble_gap_connect

Gordon — Thu, 27 Oct 2016 08:30:06 GMT

Thanks - that's really helpful. I'd just assumed addresses were unique. Looks like I need to change the API then!

RE: Connecting to Pi/Bleno with sd_ble_gap_connect

Petter Myhre — Thu, 27 Oct 2016 07:38:17 GMT

See this for differences between the address types, more information can be found in the Bluetooth spec. You need to supply the correct address type in addition to the actual address.

RE: Connecting to Pi/Bleno with sd_ble_gap_connect

Gordon — Wed, 26 Oct 2016 16:29:29 GMT

I'm using SDK12 with the 3.0.0 softdevice. Thanks! Address type was the issue! I was using BLE_GAP_ADDR_TYPE_RANDOM_STATIC, and if I changed to BLE_GAP_ADDR_TYPE_PUBLIC it worked (but then it no longer worked when accessing one of the nRF devices).

What's the difference? Is it to do with Limited/GeneralDiscoverable? I was hoping to expose this as an API to a user, where they could just supply an address like "d1:53:36:1a:7a:17" - but is that actually workable?

RE: Connecting to Pi/Bleno with sd_ble_gap_connect

Petter Myhre — Wed, 26 Oct 2016 15:55:38 GMT

I don't see why they would need to be static. I need to check the behavior, what SDK and SoftDevice version are you using? Are you sure the address and the address type is correct?

RE: Connecting to Pi/Bleno with sd_ble_gap_connect

Gordon — Wed, 26 Oct 2016 10:31:59 GMT

I also noticed that some examples set active to 1, but I seem to get NRF_ERROR_INVALID_PARAM every time I use it unless the parameters are static. Even when I do it, I still can't get a connection from the Pi though.