nRF9160 DK v1.1.0

Using an oscilloscope for current profile measurement

An oscilloscope can be used to measure the current over a given or continuous time interval and to capture the current profile.

Before you start, make sure you have prepared the Development Kit (DK) as described in section Preparing the development kit for current measurements.
Follow the steps below to measure the current profile of the nRF9160 DK:
  1. Solder a 0.5 Ω resistor to R97.
    Figure 1. Current measurement with an oscilloscope
    Measuring nRF91 SiP current using an oscilloscope
  2. Connect probes to the pins on connector P22.
  3. Measure the current power profile by measuring the voltage drop over the 0.5 Ω resistor.