https://devzone.nordicsemi.com/f/nordic-q-a/2722/question-about-heart-rate-applicationHello! I have two question from Heart Rate Application. What BLE_L2CAP_MTU_DEF number presents? I do not see event handlers for WAKEUP_BUTTON and BONDMNGR_DELETE_BUTTON. How the application knows that these two buttons present wake up fromen-USTelligent Community 13Fri, 13 Jun 2014 14:36:08 GMThttps://devzone.nordicsemi.com/thread/10592?ContentTypeID=1Fri, 13 Jun 2014 14:36:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0b8563df-739b-4f25-a372-49bd5bfeecd1Hung Bui<p>Hi,</p> <ol> <li>BLE_L2CAP_MTU_DEF is the maximum payload length of a packet on L2CAP layer.</li> <li>There is no interrupt handler for these 2 pins, they are configured to generate the GPIOTE PORT event to wake the chip up from system off. When the chip wake up from system off, it will do a reset and run the code as a fresh start. Note that we read BONDMNGR_DELETE_BUTTON_PIN_NO when starting up to detect if we should erase the bond information or not.</li> </ol><div style="clear:both;"></div>