Measuring current
Figure 29: nRF power source
5.2 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 board as described in section Preparing the
development kit for current measurements on page 36.
Follow the steps below to measure the current profile of the nRF9160:
1. Solder a 0.5 Ω resistor to R60.
Figure 30: Current measurement with an oscilloscope
2. Connect probes to the pins on connector P24.
3. Measure the current power profile by measuring the voltage drop over the 0.5 Ω resistor.
5.3 Using a current meter for current measurement
The current drawn by the nRF9160 can be measured using a current meter.
Before you start, make sure you have prepared the development kit board as described in Preparing the
development kit for current measurements on page 36.
To connect the current meter in series with the nRF9160, connect the current meter to the two uppermost
pins on connector P24.
4418_1216 v0.9.1
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