When the Power Profiler Kit II (PPK2) is used in Ampere Meter mode, the Device Under Test (DUT) must be supplied power from an external source (for example, Universal Serial Bus (USB)).
Note: Although using USB to power the DUT is sufficient, Nordic recommends a lab power supply to ensure better accuracy.
The following figure shows a typical measurement configuration using an nRF9160 DK v0.9.0 or later.
Figure 1. Measuring current in Ampere Meter mode
| PPK2 | DK |
|---|---|
| VIN | P22 VDD_nRF' |
| VOUT | P22 VDD_nRF |
| GND | P21 |
When you have connected the PPK2 to the DUT, see Connecting the Power Profiler Kit II (PPK2) to a computer.