3 Replies Latest reply on Dec 27, 2016 3:40 AM by yssu

    Why need 2 types of services ?

    chaplin.u_1533771

      In datasheet of BLE I read that exist 2 types of services:

         

      Service type
       Primary – Represents the primary functionality of the device.
       Secondary – Represents an additional functionality of the device.

         

      What exactly it mean ? Why need Secondary type ? Why not to use only Primary ?