Hi all,
i am using a STM32 Nucleo-144 developement board with the STM32F429ZI MCU and i am powering it with a 5V Battery. In the Datasheet
it says that Pin7 is a 3.3V output. Can i use this Pin to power a Sensor? Where can i read how much current Pin7 can provide?

I am referring to this datasheet (page 52) : https://www.st.com/resource/en/user...ucleo144-boards-mb1137-stmicroelectronics.pdf

 

 

Thanks for the quick response. I appreciate it. So if i understand correctly i can use Pin7 to power supply a Sensor with a maximum current of 500mA?

 

Thanks for the quick response. I appreciate it. So if i understand correctly i can use Pin7 to power supply a Sensor with a maximum current of 500mA?

According to that document, yes.

 

500mA minus whatever current the board takes.

 

How do i know how much current the board takes? The sensor i am looking at needs a maximum current of 30mA. I think the board could handle it or not?