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Can I connect an rfid reader to my arduino mini pro vcc pin? Answered

I have a 3.3v arduino mini pro, but I'll be supplying 5v to the raw pin to power it. Can I connect my 3.3v rfid reader to the vcc pin of the arduino to use the arduinos regulator or is this not possible?

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steveastrouk

3 years ago

Depends on the consumption of the reader, but for a few mA you would be fine.