Hi Neacsu, On Thu, Feb 16, 2023 at 11:20 AM Neacsu Cristian <neacsu.cristianstefan@xxxxxxxxx> wrote: > > Hello, > > Long story short, I am trying to connect with a linux PC using a > Bluetooth 5 universal adapter (Asus USB-BT500) to a Bluetooth 5 module > PCB, called BT832X which is using a Bluetooth Low Energy Technology > that is using a chip Nordic nRF52832 (see url for the module > documentation https://static1.squarespace.com/static/561459a2e4b0b39f5cefa12e/t/63de8b578e4d7813cde64445/1675529048975/BT832X-p+Product+Specifications.pdf). > Therefore I tried everything, reading docs, sniffing through the > bluetoothctl sources, gatttools sources, and I am not able to open and > connect on a socket on my PC to connect properly. > Usually for legacy Bluetooth stuff, I create a RF_COMM socket, and the > magic is done by itself. No biggie. > Here I tried an L2CAP approach (not sure if I had a proper > configuration), I tried to use the gatttool as it is, without success. > I feel a bit lost. > The remote device is working properly, because using the Nordic > demo Android app (downloadable from Google Play Store), I am able to > communicate with the PCB and exchange packages. > Do you have a functional, very simple sample, or suggestion, > preferably in C, to help me to open a socket and send a data package? > I mean, you have a BLE module, you want to connect with it using > BlueZ, how do you open a socket, how do you configure it, connect to > it and send a byte through it? > Let's keep in mind that I am already able to scan for the > destination address (I created a custom agent in bluetoothctl that is > fishing data using the "scan on" command), so the address that I'm > connecting to is already known. > > Thank you and I'm really really looking forward to your reply. I guess for LE what you really want is to use GATT procedures, which are available via bluetoothctl> menu gatt > Cristian-Stefan -- Luiz Augusto von Dentz
