Voltage divider to adjust levels

[drtrigon]

Hi there!
Nice project, was thinking about writing this code myself, but as I found your project I don't have to. Meanwhile I anyway solved with a hardware based device as seen on instructable, thus I don't need it currently. Still ... I think you add a note of caution to your readme instructions as you don't want to make people connect a 5...10V PPM signal to their built-in soundcards, right? (since that might seriously damage them, of course)