Pro Micro RAW pin as output

Can I use the RAW pin on a Arduino Pro Micro to power a Nodemcu?

If I look at the datasheet then the RAW pin is connected to the USB port with a diode in between. So the RAW pin is not behind the voltage regulator. I want to connect the RAW pin from the Pro Micro to the VIN pin of the Nodemcu. The VIN pin of the Nodemcu is placed before the voltage regulator

If the Pro Micro and the Nodemcu use less then 500ma is it safe to do it ?

Yes, you can do that. Just keep in mind that the voltage at the RAW pin will be one diode drop lower than 5V. That's not a problem when powering a NodeMCU, because its voltage regulator has a fairly low dropout.

Pieter

PieterP:
Yes, you can do that. Just keep in mind that the voltage at the RAW pin will be one diode drop lower than 5V. That's not a problem when powering a NodeMCU, because its voltage regulator has a fairly low dropout.

Pieter

Thank you for the response. Yes I noticed that all the pins from my Pro Micro output 4.6 volt and not 5v.