How do I connect Arduino 5v,3v pins in series

Other Hardware General Electronics
1

I want to get 9v from Arduino .

2

The Arduino Uno does not produce 9 volts.

1 Like
3

Hi,, @mohamedayman.dev

Can you explain what your project is and why you need 9V?

Thanks.. Tom... :grinning: :+1: :coffee: :australia:

4

The Arduino is NOT a power supply, it is a Microcontroller board. I would try to never power anything more than a few LEDs from the Arduino. If you need 9V, use an external powr supply.

5

You can use a transistor / MOSFET to control the external 9V power supply from your Arduino though (if that was the question)

6

I have to ask, how much electronics experience do you have ? For that matter, how much arduino experience do you have ? Have you even read the
specsheet for the arduino ?
zIf you rephrase your question to:
"I have an arduino.
I need 9V.
What else do I need to control the 9V with the arduino ?"
Then THAT would be a sensible question.

7

You can not connect the 5V and the 3V outputs in series because they have a common ground. If you tried to do it you would short out one of the supplies.

You can only connect voltage sources in series if they are independent of each other like batteries are.

8

You could use step up buck converter to get 9v but you don’t want to do that because Arduino has limit in current it can deliver

9

Dead thread. :woozy_face:

10

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