https://devzone.nordicsemi.com/f/nordic-q-a/3428/an36-button-handling-warningI&#39;m sorry if I&#39;m missing something... AN36 p.29 has a code snippet: static app_button_cfg_t buttons[] = { {WAKEUP_BUTTON_PIN, false, NRF_GPIO_PIN_PULLUP, NULL}, {LEDBUTTON_BUTTON_PIN_NO, false, NRF_GPIO_PIN_PULLUP, button_event_handler}, }; en-USTelligent Community 13Sun, 10 Aug 2014 22:44:50 GMThttps://devzone.nordicsemi.com/thread/12431?ContentTypeID=1Sun, 10 Aug 2014 22:44:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e45584b6-3d88-41c7-b4e4-c3508b78a9b8michurin<p>Indeed. Shouldn&#39;t the soft-device verify the version to avoid such confusion?! What is the latest stable version for SD and SRC/LIB/INC where are all examples work?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/12430?ContentTypeID=1Sun, 10 Aug 2014 17:49:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1e2c8c36-6beb-44ca-bb26-db326818ca14kb<p>It seems to be due to your using an older/different version of app_button.h.</p> <p>This is the typedef I have in my copy of the same file:</p> <pre><code>/**@brief Button event handler type. */ typedef void (*app_button_handler_t)(uint8_t pin_no, uint8_t button_action); </code></pre><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/12429?ContentTypeID=1Sun, 10 Aug 2014 02:28:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a2406f11-535b-4964-a03a-8e9dc0df3bf7michurin<p>I downloaded and compiled this example from GitHub: the same issue.</p><div style="clear:both;"></div>