SIK - Circuit 2 - Potentiometer by ehunt8301

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In this circuit you’ll work with a potentiometer. A potentiometer is also known as a variable resistor. When powered with 5V, the middle pin outputs a voltage between 0V and 5V, depending on the position of the knob on the potentiometer. A potentiometer is a perfect demonstration of a variable voltage divider circuit. The voltage is divided proportionate to the resistance between the middle pin and the ground pin. In this circuit, you’ll learn how to use a potentiometer to control the brightness of an LED. [Experiment 2: Reading a Potentiometer](https://learn.sparkfun.com/tutorials/sik-experiment-guide-for-arduino---v32/experiment-2-reading-a-potentiometer)