https://devzone.nordicsemi.com/f/nordic-q-a/42579/how-to-measure-current-on-board-pca10056Board：PCA10056 （0.9.3） SDK：15.2 Softdevice：S140 Example：ble_app_blinky Today，I follow this page Using an ampere-meter for current measurement to measure the current, And follow this page Preparing the development kit board to prepare the boarden-USTelligent Community 13Fri, 18 Jan 2019 17:22:55 GMThttps://devzone.nordicsemi.com/thread/166580?ContentTypeID=1Fri, 18 Jan 2019 17:22:55 GMT137ad170-7792-4731-bb38-c0d22fbe4515:60c741ad-6dce-4513-86b4-900fe422d004Hakon<p>The USB needs to be connected to J2. See this post for more information <a href="https://devzone.nordicsemi.com/f/nordic-q-a/41250/how-to-measure-current-with-an-external-power-supply-on-nrf52840/160444#160444.">devzone.nordicsemi.com/.../160444</a></p><div style="clear:both;"></div>