Does anyone know if RAW is the same as VIN?

Projects General Guidance
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I'm afraid I add 9V power supply, Arduino Micro will burn directly, the attachment is my pinout map but I'm not sure vin pin position?

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RAW is the correct input pin for 9vdc.

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The input of the voltage regulator is called V-in on some boards and RAW on others.
Different name for the same thing.
Leo..

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on a pro mini RAW is pre voltage regulator and VIN is post regulator

do NOT apply a 9v source to the VIN pin.

VIN can be used as an input or an out put but do not exceed the boards voltage "working" voltage.
you can put 5v to VIN and the board will work. you can also use it as a 5v power supply if RAW is being used to power the board from a greater voltage, be careful not to use the VIN as an output or power supply for anything that requires more amps than what the voltage regulator is rated at.

i usually use seperate voltage regulators. (personal prefferance)

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LandonW:
on a pro mini RAW is pre voltage regulator and VIN is post regulator

Better check that.
A ProMini is AFAIK labeled RAW (pre) and VCC (post). There is no Vin label.

I don't know of any Arduino that has a post regulator pin called Vin or V-in.
Leo..

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LandonW:
on a pro mini RAW is pre voltage regulator and VIN is post regulator

OP does not have a pro mini

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on a pro mini RAW is pre voltage regulator and VIN is post regulator

do NOT apply a 9v source to the VIN pin.

Not sure what schematic you are referring to, this would be correct.

On a pro mini RAW is pre voltage regulator and Vcc (+5V) is post regulator
do NOT apply a 9v source to the Vcc (+5V) pin.

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Wawa:
Better check that.
A ProMini is AFAIK labeled RAW (pre) and VCC (post). There is no Vin label.

I don't know of any Arduino that has a post regulator pin called Vin or V-in.
Leo..

you are correct sir, I was mistaken. for some reason I was thinking VIN was VCC.

however, even on my 2560 VIN is post regulator and RAW would be where the 9v plugs in

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LandonW:
you are correct sir, I was mistaken. for some reason I was thinking VIN was VCC.

however, even on my 2560 VIN is post regulator and RAW would be where the 9v plugs in

What the hell board is that? On my mega2560's, there's the barrel jack, then a diode to Vin, which is the input to the regulator, then 5v (which is the output of the power source switcher circuit between VUSB and the output of the regulator.)

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LandonW:
however, even on my 2560 VIN is post regulator and RAW would be where the 9v plugs in

Better check that too.
Vin on a Mega 2560 is pre-regulator. Never seen RAW printed on a Mega.

There is a DC socket on a Mega that connects via a polarity protection diode to Vin.
9volt can be connected to Vin, or to the DC socket (safer).
Leo..

11

it is on an elegoo mega. you're telling me that if you apply 9v to the jack then you have 9v at VIN??

pretty sure that i've always gotten 5v from VIN. and no there is obviously no RAW pin but it is implied. if the mini had a jack it wouldn't have a RAW pin

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LandonW:
it is on an elegoo mega. you're telling me that if you apply 9v to the jack then you have 9v at VIN??

pretty sure that i've always gotten 5v from VIN. and no there is obviously no RAW pin but it is implied. if the mini had a jack it wouldn't have a RAW pin

Unless Elegoo made a grevious mistake while cloning the board, yeah.

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LandonW:
i usually use seperate voltage regulators. (personal prefferance)

Using the build-in regulator is usually better than some external regulator with poor decoupling hanging of a breadboard. Only use external regulation if you have to. That could be because of too much voltage drop between supply and board voltage, and/or too much current draw from the 5volt/3.3volt pins.
Always calculate before you decide.
Leo..

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LandonW:
you're telling me that if you apply 9v to the jack then you have 9v at VIN??

No, there is a polarity protection diode between the DC socket and Vin, with a drop of ~0.7volt.
9volt on the DC socket is about 8.3volt on Vin.

Vin on a Mega needs at least 6.6volt on Vin, because 6.6volt is the switchover voltage where the Mega disconnects USB supply.
Leo..

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Me being a retard is an option too lol. I have no schooling in this digital world... however I am going to put my meter on this to verify for myself. Not that I don’t believe you but just for affirmation.

Literally the only knowledge I get for controllers is what I get from this forum and my own research