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What's the point of these power supply modules? I thought an Ardunio could take a 9V power supply, why not just VIN 9V directly from DC wall adapter? : r/arduino
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![Different Ways to Power Arduino Board - How to Power Your Arduino Board with Different Power Options Different Ways to Power Arduino Board - How to Power Your Arduino Board with Different Power Options](https://circuitdigest.com/sites/default/files/field/image/Power-Arduino-Board.jpg)
Different Ways to Power Arduino Board - How to Power Your Arduino Board with Different Power Options
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