XIAO nRF52840 BLE (multiple connections of boards to PC)

Carlos_Andres_Rodrig · November 15, 2022, 2:46pm

Hi community, I did buy 10 XIAO nRF52840 boards, I will want connect to pc for data trasmition of IMU Simultaneusly but I dont now how can connect.
Thanks, is very important for me.

Carlos.

Citric · November 16, 2022, 2:13am

My suggestion is to send the tri-axis data from each XIAO BLE sense to the computer via Bluetooth by means of BLE. This way, it is only necessary to upload a copy of the program for sending the IMU via Bluetooth to each XIAO BLE sense.

PJ_Glasso · January 12, 2023, 5:44pm

Hi , curious to know If you ever found a solution?
Thanx
GL

msfujino · January 14, 2023, 2:08am

Hi,
The following link may be helpful.

github.com/hbldh/bleak

Problem with connecting the 5 BLE modules in Windows 10 20H2

opened 05:36AM - 16 Jul 21 UTC

closed 01:53PM - 26 Nov 21 UTC

sd1026

question

I have been able to connect to my 5 BLE modules, and I am receiving notification…s from all of them. But I have a doubt that when I pass data through the callback function, it takes (sender, data) as parameters. Now, here I am confused as to what is this "sender" here. When i debug the code, it always prints 13 as sender. So, is it the case that multiple ble modules are connected but, the notifications are coming from only one of them. Or, is it something that the code already has.

[EDIT}
I tried following the example in the link and was able to connect 4 XIAOs to my PC at the same time, I only have 4 so I don’t know if it is possible to connect more.