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    Its not a duplicate question. I want a 5V output and not provide 5V input to NODEMCU. Commented Jun 21, 2019 at 9:05
  • I also did not know the Vin pin could be used for output; read the accepted answer from Majenko. Commented Jun 21, 2019 at 9:32
  • Got it. Thanks. Commented Jun 21, 2019 at 10:05