###Other relevant posts
##Preparing the development kit
The USB connector must not be used to power the board during measurements as it will give unreliable results due to added supply and measurement noise when the debugger chip USB port is active. The board should be powered from a coin cell battery, or using the External Supply pins P21 for current measurements.
Note: After programming the nRF52832 device, the USB must be disconnected and the dev kit power cycled to reset the debugger chip before current measurement.
To measure the current, you must first prepare the board by doing both of the following steps:
To re-program the nRF chip when SB9 is open and SB12 is shorted, disconnect external supply, ensure there is no battery inserted, remove measurement devices from P22, add a jumper to P22, and then connect the USB cable.
###Using an ampere-meter for current measurement:
Note: An ampere-meter will measure average current drawn by the nRF52832 if:
###Using an oscilloscope for current profile measurement:
Important: The current measurements will become unreliable when a serial terminal is connected to the Virtual COM port.