Volume Control with WIG-11125

Community Projects
1

I plan to use the WIG-11125 board (uses the WTV202SD chip) in a custom playback product. The version available from Sparkfun does not permit use of the volume + and - buttons except through a microcontroller. That’s beyond my abilities, plus I probably don’t have room for any extra boards inside.

I’m happy to pay someone to show me how to wire up a volume control without using any other boards, just a potentiometer.

If that’s not possible, then I’m also happy to pay someone to set up a turn-key serial controller (Arduino board?) that I could quickly and easily duplicate without further technical assistance.

2

It’s rather easy to put in your own Arduino based controller. Just search barebones Arduino and copy the schematic into your design.

3

On page 20 of the [WTV020SD datasheet it shows how to put in a knob volume control.

(Be sure to get a “log” or “audio taper” 10K pot.)

The chip by itself only has 8 volume levels, even with uP control.](http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Widgets/WTV020SD.pdf)