https://devzone.nordicsemi.com/f/nordic-q-a/16732/how-to-use-interrupt-in-ble-centralHi all Nordic Developer, Currently I am working on nrf51-dk(as a BLE central) and I wish to connect one of its pin to a power supply(as a input). If the power breakdown, it should send out a warning message. I guess using an interrupt might be a gooden-USTelligent Community 13Thu, 29 Sep 2016 07:37:15 GMThttps://devzone.nordicsemi.com/thread/63986?ContentTypeID=1Thu, 29 Sep 2016 07:37:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2be2aaec-a833-48d7-9644-97add573e792J&#248;rgen Holmefjord<p>Please have a look at the documentation of the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/hardware_driver_gpiote.html?cp=4_0_0_2_5">GPIOTE driver</a> and the APIs for <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/group__nrf__gpio.html?cp=4_0_0_6_5_7">GPIO</a> and <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/group__nrf__gpiote.html?cp=4_0_0_6_5_4">GPIOTE</a> abstraction. You can find an example in the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/pin_change_int_example.html?cp=4_0_0_4_5_15">pin_change_int</a> example found in SDK12.</p><div style="clear:both;"></div>