ST STM32WBA65I-DK1 User Manual page 19

2. Use an external power supply with current measurement capability. In this case, the jumper (JP2) must be
OFF and the supply must be connected to pin 1 of JP2 (refer to
between 1.8 and 3.3 V. The rest of the board is powered by any other supply on JP4.
Caution: As explained above, the supply voltage VDD must be between 1.8 and 3.3 V.
UM3462 - Rev 1
Figure 16. Current measurement with an external power supply
U11
3.3 V LDO
U9
Power switch 5 V/3 A
®
USBC protection
U18
JP4
5V
5V_STLK
3.3 V LDO
5V_VIN
5V_EXT
VBUS_STLK
JP4
5V_USB_MCU
Hardware layout and configuration
Figure 16). The supply voltage must be
3V3_STLK
Grove connector (CN12)
Digital microphone (U21)
3V3
JP2
Ammeter
STM32WBA65RI
External
power
supply
1.8 to 3.3 V
UM3462
ST_LINK/V3EC
Joystick (B1)
OLED (U13)
MIPI10 (CN14)
TAG (CN15)
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