How to distinguish from which characteristic the data come?

[Pawel Niedbala]

Hi! 

I am using SDK15.

I am using ble_app_uart and let's suppose that both of my characteristics (RX and TX) have  char_md.char_props.write = 1; property so I am able to send some data from mobile app nRF Connect to Nordic chip.

How to tell if the data comes from RX Characteristic or TX Characteristic?

I have tried

 

static void on_write(ble_nus_t * p_nus, ble_evt_t const * p_ble_evt) 
{
..
    var1=p_evt_write->uuid.uuid;
..
}

but no success, variable values don't differ regardless of RX Char or TX Char.

[Pawel Niedbala]

Okay, I think I solved it.  p_evt_write->uuid.uuid value indicates which characteristic was used.