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I have a node MCU and I'm powering it through the vin and gnd pins. I have a small question when I supply power from the vin pin and also connect the usb cable from my power bank the node MCU takes power from which of these two ways? Vin or usb?

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  • refer to the NodeMCU schematic diagram – jsotola May 8 at 14:10
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    What exact version of NodeMCU? The VIn pin varies from version to version. – Majenko May 8 at 15:50
  • You can test this easily with an ammeter – Coder9390 May 16 at 3:46

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