Attaching Interrupt increases power to 200uAhttps://devzone.nordicsemi.com/f/nordic-q-a/24792/attaching-interrupt-increases-power-to-200uaI have a very simple test script which enables a BLE service (only the Generic Access and Attribute), advertises and waits for connection. It also sets four pins to input pins. I am using the Arduino environment and a MDBT40 raytac module. During thaten-USTelligent Community 13Thu, 31 Aug 2017 09:31:54 GMTRE: Attaching Interrupt increases power to 200uAhttps://devzone.nordicsemi.com/thread/97598?ContentTypeID=1Thu, 31 Aug 2017 09:31:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:85046cb2-7cbc-423e-98d6-5375a6aa6db5gkitteridge<p>Hi Martin, Turns out this was the case! although I was not giving them pullup pins, the internal RedBear libraries I was using wrap up some mbed code which by default pulled the pin high. After a day or so of chasing this seemed to be the issue</p><div style="clear:both;"></div>RE: Attaching Interrupt increases power to 200uAhttps://devzone.nordicsemi.com/thread/97597?ContentTypeID=1Thu, 31 Aug 2017 09:30:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:69f293aa-17be-48e2-bf62-d850be9107acMartinBL<p>Hi, Is it possible that you have an internal pull up/down resistor that draws current? The internal pull resistors have a typical value of 13 kOhm. If you e.g. have Vdd=~3V and a GPIO pin configured as an input with pullup enabled and then the pin is pulled to GDN the resistor will draw 3/13k = ~230uA.</p><div style="clear:both;"></div>