Hello, I want to be able to use a free spinning knob dial to adjust a number seen on a display and then store that number for later.
Kind of how like car volume dials work. I want to be able to adjust a number on a display from 0.00 to 25.00 in increments of 0.1 and then push a button to store that value.
What kind of components would I need and how would I go about doing this?
a free spinning knob dial to adjust a number seen on a display and then store that number for later.
I suggest you use a rotary encoder with integrated push button. You store the selected number by pushing the button.
I did something similar (setting up the time) in this project:
Go to Digikey and search for encoders - The select CTS Electrocomponents and detents and Switch. Several options under $5.00. I have used some of these and they make a great panel switch and are very durable.