I got a adc, so its possible

So I was wondering how I can setup a blockwave that will change pitch and volume when the sensor gets triggered. I'm trying to make a alarm that buzzes when someone is near with a higher pich when he is closer. So lets say 0-3.3v range for 0-100% audio and pitch from low to high. (Can't find any tut...

My scientist friend helped me

I also have a new board, however this one does not have a 5v pin so I'm a bit afraid to so things with it. =/

It does have a 3.3v pin though (on the back)



Any suggestions as to how I wire it?