Hi,
I'm familiar with audio circuits and making PCBs but I'm trying to find information about something I have no experience with.
I've seen numerous examples of people using an Arduino with a potentiometer to control the numbers on 7 segment LEDs.
What would be the most inexpensive way to have a potentiometer control the numbers (1-9) on a single 7 segment LED (using an 18V source)?
Is this something that is possible using $15 worth of parts, for example?
I'm familiar with audio circuits and making PCBs but I'm trying to find information about something I have no experience with.
I've seen numerous examples of people using an Arduino with a potentiometer to control the numbers on 7 segment LEDs.
What would be the most inexpensive way to have a potentiometer control the numbers (1-9) on a single 7 segment LED (using an 18V source)?
Is this something that is possible using $15 worth of parts, for example?