© Warren Gay 2017

Warren Gay, Custom Raspberry Pi Interfaces, 10.1007/978-1-4842-2406-9_7

7. Potentiometer Input Controls

Warren Gay

(1)St Catharines, Ontario, Canada

Everyone who has operated a stereo or radio is familiar with the volume control. Besides the tuning knob, this is probably the most used control. The technical name for it is the potentiometer. Because of its lengthy name, it is often referred to simply as the pot.

Because of the hardware access that the Raspberry Pi provides through its GPIO, I2C, and SPI ports, the potentiometer is potentially very useful. This chapter will explore its application.


Figure 7-1 illustrates a small collection of single-turn potentiometer types. Two old knobs for the shafted pot types are ...

Get Custom Raspberry Pi Interfaces: Design and build hardware interfaces for the Raspberry Pi now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.