How can i figure out the Pin voltage of Board STM32WB55RGVx

[mmed]

Hi,

How can i find the Pin voltage of different Pin of Board P-NUCLEO-WB55-Nucleo(stm32WB55RGVx), Especially the Pins used for UART communication? (Tx and Rx Pin)

I didn' find a clear information in the Datasheet of this board:

https://www.st.com/resource/en/user_manual/dm00517423-bluetooth-low-energy-and-802154-nucleo-pack-based-on-stm32wb-series-microcontrollers-stmicroelectronics.pdf

Thans in advance.

[mmed]

Hello @Remi QUINTIN​ ,

Please any information about this topic.

Thanks in advance.

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Hello @Community member​ ,

Any idea please,

Thanks in advance.

[Tesla DeLorean]

Check the schematics and wiring of IOREF pin, should be fairly definitive.​

[mmed]

Hi,

Thanks for your reponse

IOREF ==3.3V

Is that mean, that all PIN digital voltage is 3.3V??

[mmed]