RE: How to use HCI over UART interface to create Win10 app that communicates using NUS

Steven Grunza — Wed, 22 Jul 2020 13:58:34 GMT

As far as I can tell BlueCove does not support BLE well. From the BlueCove.org website:

BlueCove provides JSR-82 Java interface for following Bluetooth Profiles:

SDAP - Service Discovery Application Profile
RFCOMM - Serial Cable Emulation Protocol
L2CAP - Logical Link Control and Adaptation Protocol
OBEX - Generic Object Exchange Profile (GOEP) profile on top of RFCOMM and TCP

Looks like JSR-82 was released in 2008, about 2 years before BLE spec came out in 2010 or so. I'll research it some more.

RE: How to use HCI over UART interface to create Win10 app that communicates using NUS

Didrik Rokhaug — Wed, 22 Jul 2020 07:59:13 GMT

Hi.

HCI is used for communication between the Bluetooth Controller, which is responsible for the radio link, and the Bluetooth Host, which contains the rest of the Bluetooth stack.

So in most cases, you wouldn't use HCI directly, but instead use a Bluetooth Host library, which interfaces with the Controller over HCI. After some searching, it seems that BlueCove is the most used Java host. The library seems to use the built-in Bluetooth device, but I am no Java expert, so I am not quite sure.

Another option to those you have mentioned is to use our pc-ble-driver: https://github.com/NordicSemiconductor/pc-ble-driver

It is built around our SoftDevice, so it does not use HCI, but you should be able to achieve the same things, just with the host running on the dongle as well.

Best regards,

Didrik