This section presents setup, settings, and methodology for measuring current consumption in Thread and Zigbee devices.
When selecting a Nordic Semiconductor development kit for measuring power consumption, choose one that has power configuration switches to disable additional on-board modules, such as the SEGGER J-Link programmer. These are usually installed on the development kit and must be disconnected to prevent an increase in current consumption beyond what you're trying to measure.
Current consumption measurements differ between boards. A board with additional components, such as the nRF52840 Development Kit, consumes more current in sleep mode. According to our measurements, the basic EBYTE E73 module showed 1 µA lower sleep current than the nRF52840 DK. Sleep current also differs between Development Kits of the same revision. Board temperature and other environmental factors can also affect measurements.