nRF7002 EK v1.0.0

Using an ampere meter for current measurement

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.

Make sure you have prepared the Evaluation Kit (EK) as described in Preparing the nRF7002 EK.
Connect an ampere meter between the pins of connector P6 as shown in the following figure.

Figure 1. Current measurement with an ampere meter
Current measurement with an ampere-meter on nRF7002 EK
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.