What kind of switches are these?

[Fusion916]

I want to use a up/down counter volume knob for volume control, but what type of rotatory "switch" is it called where its continuous turn (left or right), and where turning right is a "right switch" and turning left is a "left switch" for this volume control?

I know how to describe it but I don't know what the term is for this type of volume knob.

 

[Max Headroom]

Rotary encoder....sends out pulses.
Research 'Gray Code' also.

Dan.

 

[rafjr00]

Just need to find one that is not rotary. The Dewalt radio I have at work, the tuning knob works like you want.

 

[jaycee]

yes, it's a rotary encoder. this typically requires a microcontroller being involved to count the pulses and their direction, and then control something like a programmable gain amp such as the PGA2320