HCI support for external Bluetooth Classic chipset

[Glen M]

Hi,

We are considering hooking up an external chip with a Bluetooth standard HCI interface to do Bluetooth classic using Hands Free protocol and Serial Profile protocol.

I know the nRF5340 uses HCI with the HCI_RPMSG project - Since you already have some kind of HCI support - is what we want to do easy, or is there a big difference between how that's used to communicate BT 5 / low energy stuff VS the old school Classic stuff?

Apologies if my question isn't worded well, I'm pretty new to HCI.

Thanks!

Glen

[RaleighKozey56]

Interesting question about HCI support! It sounds like you're diving into the world of Bluetooth Classic. While the nRF5340 uses HCI for Bluetooth 5/LE, integrating Classic could present some unique challenges. Think of it like playing Block Blast - the underlying mechanics might be similar, but the game pieces and overall strategy differ significantly. Getting the external chipset to play nicely with the existing HCI_RPMSG project might require some careful maneuvering and potentially custom implementations.