I need LED help..... Answered
I want to make an LED project that fakes an Audio Level Meter that looks like this:
Most like 3 red LEDs first, then 3 Yellow LEDs, then 3 Green LEDs. Ideally it would be battery powered. It doesn't need to have two rows, one would suffice. But they'd have to glows in a line at random lengths to mimic actual sound level monitoring (bar mode, not dot).
Also I'd like to use the small square type of LEDs used in the Microdot wrist watch instructable, unless those are harder to work with. What are those called?
If it's easier to make an actual sound meter with a condensor mic or something, directions for that would also be appreciated. I found this but it seems complicated as I haven't done elctronics since high school.
Any help would be much appreciated!