Rotary Dial From Old Phone With Arduino

Rotary dials from old phones are funny. They are looking nice and making satisfying noises. Once, I found one at home. And i got an idea to control it via arduino. So i got to work.

well you will need:

Arduino (I recommend UNO)

Rotary dial switch

Wires & Resistors

and if you wanna visual feedback just LED diodes

The dial needs to be editted a little. First, just locate counter button, it will be a 2 contacts near an gear and locate an active switch. This one may be located somewhere on the main wheel right in the way of a little stump on the edge of the wheel. Solder wires on connectors and you get the dial ready.

Follow the picture. There are sume inditation leds, connected with resistor on cathode. This resistor is an current limiter. The second resistor is connected to negative and its pull-down resistor.

I tried to explain the code in the code via comments so read the comments.

congrats, you are done! I know, that my code is not perfect but im just novice, right?