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![Arduino Uno Tutorial [Pinout]](https://diyi0t.com/wp-content/uploads/2019/08/Arduino-Uno-voltage-current-overview.png "Arduino Uno Tutorial [Pinout]")
Arduino Uno Tutorial [Pinout]
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![Arduino Uno Tutorial [Pinout]](https://diyi0t.com/wp-content/uploads/2019/08/Arduino-Uno-Thumbnail.png "Arduino Uno Tutorial [Pinout]")
Arduino Uno Tutorial [Pinout]
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Is there any way to have an Arduino Uno pin output 3.3V instead of 5V when it is high (looking for a non PWM solution)? - Quora
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3.3V Conversion | Arduino Tips, Tricks, and Techniques | Adafruit Learning System
