The average current drawn by the nRF7002 EK 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 P6 as shown in the
following figure.
Figure 1. Current measurement with an ampere meter
For the following conditions, an ampere meter measures the average current drawn by
the
nRF7002 EK.
- The EK is in a state where it draws a constant current for the activity on
the device changing load current, like Wi-Fi® connection events, the activity 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.
For best results, use a true Root Mean Square (RMS) ampere meter.