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Powering up stm32

Question asked by Nidhal Abidi on Apr 17, 2018
Latest reply on Apr 19, 2018 by AvaTar

which is best to power up    """ STM32VLDISCOVERY """   via 5V pins and a ground or 3,3V ???

also which is best to for Digital Input for STM32VLDISCOVERY, using 5v or 3,3V ???


In the data sheet I found that bouth of them works. And when I tryed it, bouth works but in the data sheet reset button and pin PA0(user button) are related to 3,3V.



so wich is the best chice for an industrial project ???