Introduction: A Digital Potentiometer Circuit Without Arduino!!
Potentiometers basically control a certain parameter, such as brightness, contrast, or volume. However those we usually get in the market use knobs. So how do devices control volume, contrast etc with just 2 buttons?? Well, if you've got the Arduino, its somewhat simple.
Now for beginners its not so simple.... so here I've designed such a circuit without an arduino. This one uses 3 buttons, but if your not lazy you can modify the circuit for just 2. Easy for beginners, even if the circuits look complicated. It also has a display, which you may not put if you don't have the required components. See the video for the rest.............
Images of the diagram will help.............
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.