Can we send data only to perticular device in case of multiple centrals connected to a peripheral?

[Pranay]

Basically I have modified the ble_app_uart example to connect multiple centrals(android devices),

now i want to transfer the string to all android devices which are connected, I tried sending uart data but it is being recieved by lastly connected mobile only. Is there any way to achieve it.

[run_ar]

You will get a connectino handle for each connection. So if you loop through the connections you should be able to send the message to everyone. see sd_ble_gatts_hvx -> conn_handle

[Pranay]

Okay..then how we will be switching between conn_handle for one central to another ?

[run_ar]

Which softdevice are you using? How many centrals are you actually connected to? can't you just loop through the active connections to notify all the connected centrals? I assume you keep track of conn handles.

[Pranay]

I am using s132 v4.0.2 and currently connected to 4 centrals.Yes i tried looping conn handles and it is working fine now.

[P Sumanth]

May i know how can i connect to multiple centrals,

regards

sumanth