How to subscribe to multiple characteristics from same service in central code?

[Hrushi]

Hello All,

I have a peripheral device where one service with 4 characteristics is implemented. Out of these 4 in 3 services notify is enabled.

Now I want to subscribe to these three services at a time from my central code. Now my questions are:

1. Do we need to write notif_enable() function for each characteristic?
2. In which functions we need to do the modifications?

BR, Hrushi

[Petter Myhre]

Yes, you have to write 0x0001 to CCCDs of the respective characteristics to enable notifications.

It is up to you have to implement this, you can do it sequentially. Write to the first, then when you get the write response, write to the next, and so on. See this for more information.