Not sure which one I have restarting an old project from 2 years ago. Any pin function changed over it's run I should keep in mind? Anyone have issues with slow scl and sda rise times with your audio board attached? I know the pull up should be 100k or so but I had to use 4.7k and even then I remember having to define a slower clock aground 21 khz to get it to connect. I had to rework the wire header file to go