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

https://cdn.sparkfun.com/datasheets/Dev/Arduino/Boards/Pro_Micro_v13b.pdf

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.