https://devzone.nordicsemi.com/f/nordic-q-a/86770/cccd_handle-is-difference-between-getting-and-setting-while-notify-indicatehello all: I&#39;m using nRF52820, SDK 17.1.0, S113. I made a BLE perpheral role, and it has two service, each service has two characteristic. like this: When using nRF connect for mobile, i connect this BLE perpheral role. After clicking notify enableen-USTelligent Community 13Fri, 08 Apr 2022 12:52:58 GMThttps://devzone.nordicsemi.com/thread/362611?ContentTypeID=1Fri, 08 Apr 2022 12:52:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:33a6a96b-cde1-4647-bcef-fc6331d9ad3dVidar Berg<p>Hello,</p> <p>In tp_logic.c you are printing the value_handle instead of the actual cccd handle:</p> <div style="background-color:rgba(30, 30, 30, 1);color:rgba(212, 212, 212, 1);font-family:&#39;Droid Sans Mono&#39;, &#39;monospace&#39;, monospace;font-size:14px;font-weight:normal;line-height:19px;white-space:pre;"> <div><span style="color:rgba(212, 212, 212, 1);"> NRF_LOG_DEBUG(</span><span style="color:rgba(206, 145, 120, 1);">&quot;p2c notify cccd_handle: %d.&quot;</span><span style="color:rgba(212, 212, 212, 1);">, m_handle.p2c.notify.value_handle);</span></div> </div> <p>This is probably what you had intended:</p> <div style="background-color:rgba(30, 30, 30, 1);color:rgba(212, 212, 212, 1);font-family:&#39;Droid Sans Mono&#39;, &#39;monospace&#39;, monospace;font-size:14px;font-weight:normal;line-height:19px;white-space:pre;"> <div><span style="color:rgba(212, 212, 212, 1);"> NRF_LOG_DEBUG(</span><span style="color:rgba(206, 145, 120, 1);">&quot;p2c notify cccd_handle: %d.&quot;</span><span style="color:rgba(212, 212, 212, 1);">, m_handle.p2c.notify.cccd_handle);</span></div> </div><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/362496?ContentTypeID=1Fri, 08 Apr 2022 07:35:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:acbae5bf-3503-4ae6-8427-c774279974f9yang.hu<p><a href="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/ble_5F00_peripheral.7z">devzone.nordicsemi.com/.../ble_5F00_peripheral.7z</a></p> <p>This file is source file.</p><div style="clear:both;"></div>