7.2.4 Current measurement
As the device handles low‑power features, it may be worth measuring the current consumed by the
STM32W5MMG module. To easily perform this measurement, there are two possibilities:
1. Measure the supply current of the STM32W5MMG module using an ammeter in place of the JP1 jumper. In
this case, all supply sources can be used except the AVDD coming from the ARDUINO
®
connector. Figure 8
shows the configuration:
Figure 8. Current measurement with an ammeter
2. Or use an external power supply with current measurements capability. In this case, the JP1 jumper must be
removed, and the supply must be connected to pin 2 of JP1, as shown in Figure 9. The supply voltage must
be 3.3 V and AVDD input (CN1-8) must not be used during this measurement.
Figure 9. Current measurement with an external power supply
UM2825
Power supply
UM2825 - Rev 1
page 14/42
To Next Page
Loading...
Need help?
General
