https://devzone.nordicsemi.com/f/nordic-q-a/13158/how-to-get-the-ble-event-when-someone-read-my-characteristic-valueHi, i did an app, that shows battery level. it&#39;s working, and show the vlaue i publish. The app is the client and Master Control is the server ( the master control connect on my nrf51822) . When i click on the characteristic of the battery , ien-USTelligent Community 13Wed, 13 Apr 2016 10:20:18 GMThttps://devzone.nordicsemi.com/thread/50159?ContentTypeID=1Wed, 13 Apr 2016 10:20:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f5898419-d472-4019-9799-57daf0985891ToTo<p>Ok i get , thanks for the help ;)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/50160?ContentTypeID=1Wed, 13 Apr 2016 10:19:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0fe2088a-69d0-4488-af4d-5e8398acc816ToTo<p>Ok (for the reader facing same prob), the idea is to set read autorization to 1 in order to get BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST when the MC read that value (or on discovery service) .SO i can catch it when it reads it, and then react as i want</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/50158?ContentTypeID=1Wed, 13 Apr 2016 08:33:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:387ede85-3a97-44d5-8285-e067bb497e4dToTo<p>Reconfiguring my characteristic to be able to get the event ? this is what you mean ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/50157?ContentTypeID=1Tue, 12 Apr 2016 18:20:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a3a6c070-f8f2-4b1f-9d07-ed1394f0b5c7Pavan kumar<p>As per my knowledge unfortunately we don&#39;t have any event for general read operation. But if you can use an authorized read then you do that by using BLE_GATTS_EVT_RW_AUTHORIZE_REQUEST for your work</p><div style="clear:both;"></div>