Split 12V DC adapter

Other Hardware Motors, Mechanics, Power and CNC
1

Hi,

For a project of mine, I need to split a 12V DC adapter so that one part of it can be connected onto the arduino, and another part can be attached to a Buck converter to power some 5 V pumps. How do I go about splitting the wires in the adapter? Do I just snip the wire somewhere in the middle and then split both positive and negative wires into 2 different wires or is there something I am missing here?

DC adapter - https://www.tinytronics.nl/shop/en/power/power-supplies/12v/12v-1a-adapter-with-dc-jack

Thanks

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3

That's only a 1 Amp adapter, 12 Watts, how much current do the pumps draw? How many is "some"?

4

Yes, that's it basically.
How to go about it and what to do are all that remain.

5

Be cautious of which is positive and which is negative, if reversed expect to fry something. Using a LED in series with a resistor can be used as a polarity probe if you do not have a meter.

6

Thank you for the responses, I had a voltmeter to check the polarity but I managed to just snip the wires and get it plugged in.

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