The average current drawn by the nRF7002 DK can be measured using an
ampere meter. This method monitors the current in series with the nRF device.
Connect an ampere meter between the pins of connector P23 as shown in
the following figure.
Figure 1. Current measurement with an ampere meter
An ampere meter will measure the average current drawn by the
nRF7002 DK if:
- The DK is in a state where it draws a constant current for the activity on
the device changing load current, like Wi-Fi® connection events, is repeated continuously and
has a short cycle time (less than 100 ms) so that the ampere meter averages
whole load cycles and not parts of the cycle.
- The dynamic range of the ampere meter is wide enough to give accurate
measurements from 1 µA to 15 mA.
It is recommend to use a true Root Mean Square (RMS) ampere meter.