Using STM32WB with CR2032 Battery

[Aj.Chan]

Hey all,

I am trying to use the STM32WB55RG Nucleo board and for the application, I would have to use the board with the coin battery power supply (There is a coin battery slot for CR2032 battery).

However, I could not see much information on how to change the configurations on the board to use battery power. It can be seen in the datasheet it is said that the SB29 should be closed to use the battery but I am not sure how to do it.

Any help would be appreciated. Thank you.

[Mike_ST]

Hello,

Please check the MB1355 schematic to see what you need to do.

https://www.st.com/en/evaluation-tools/p-nucleo-wb55.html#cad-resources