How to make an alternating music box?
The movements are simple: a power supply (two AAA batteries), a potentiometer, and a motor that turns the "roller" which plucks metal tines.
There is another question I have about this project:
The tines and the "picks" on the rollers are connect to LED lights so each time one is plucked, the LED light turns on. This is simple enough to create (https://www.instructables.com/id/Interactive-musical-box/#intro) but I want the lights to each stay on for a little bit longer than this contact lasts..maybe just a second. I am not sure how to accomplish this.
If anybody can help me with either of these two question, that would be greatly appreciated. I plan to publish the entire process on here with credit given to those who help me so don't be shy! Even if you aren't sure your idea is correct, all thoughts are welcome.