5V and 3.3V devices at the same time

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  • Hello, from other posts on this forum I already know that I can power 5V devices simply by connecting them to the VBat (in particular I'm thinking about relay module).

    Can I use some 3.3V sensors with Espruino at the same time? And should they be connected to a separate GND line?

  • Yes, you can use both - there shouldn't be any need for a separate ground line at all.

  • Cool, thanks

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5V and 3.3V devices at the same time

Posted by Avatar for graf @graf

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