Measuring current
Figure 33: 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
on page 39.
Follow the steps below to measure the current profile of the nRF9160 DK:
1.
Solder a 0.5 Ω resistor to R97.
Figure 34: Current measurement with 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.
5.3 Using a current meter for current measurement
The current drawn by the nRF9160 DK can be measured using a current meter.
Before you start, make sure you have prepared the
on page 39.
To connect the current meter in series with the nRF9160 DK, connect the current meter to the pins on
connector
P22
.
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