hello i am not sure if this is the right place for this but i need help with a project.
i need to step up the 5V from arduino nano to 28V DC. idealy at least 10 amps.
please any suggestions welcome
I highly doubt that's going to happen. Assuming 100% efficiency, that would require the Nano to supply 5V at 56A to whatever circuit you have in mind. And the Nano, like all other Arduinos, is not a power suppy.
Interesting topic title though.
Control a relay that can pass 28VDC at10A. arduino relay 28vdc 10amps at DuckDuckGo