2. Potentiometer¶
A potentiometer is a device that allows you to measure displacements or turns. A rotary potentiometer, like the one in the image below, can measure angles.
![Potenciómetro giratorio de 50k Ohm](_images/img-0083.jpg)
A linear potentiometer, like the one in the image below, can measure linear displacements.
![Potenciómetro lineal](_images/img-0014.jpg)
These components are also used to quickly enter values into a digital system. Examples of this would be sound controls, light intensity dimmers, etc.
![Potenciómetro giratorio](_images/img-0015.jpg)