Newbie question about Pro Micro power?

Newbie question about Pro Micro power?#180967

By kenw232 - Sun Apr 05, 2015 12:21 pm

- Sun Apr 05, 2015 12:21 pm #180967

For the Pro Micro shown here at the below URL? Where is 5V out to power my transistor? The VCC pin (4th from the top right) is for incoming power to power the Pro Micro. Where do I get 5V out? My Arduino UNO had separate 5V plugs for the analog A0-A5.

https://learn.sparkfun.com/tutorials/pr ... -pro-micro

Re: Newbie question about Pro Micro power?#180968

By jremington - Sun Apr 05, 2015 1:19 pm

- Sun Apr 05, 2015 1:19 pm #180968

The tutorial is very clear and deserves more careful study than you have given it.

The RAW pin is for powering the Pro Micro by an unregulated supply. The Vcc pin is power out from the Pro Micro voltage regulator. It is possible to use the VCC pin for well regulated power in if you do not supply voltage > 6V to the RAW pin, and are not powering via the USB connection, but in doing so, there is a small chance that the regulator will be damaged.

Re: Newbie question about Pro Micro power?#180971

By kenw232 - Sun Apr 05, 2015 5:45 pm

- Sun Apr 05, 2015 5:45 pm #180971

I see it there, "If the board is powered through the ‘RAW’ pin (or USB), this pin can be used as an output to supply other devices.". Your right, I should have read it. Should also have OUT on the image too for Vcc.

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