@davidr That's the plan, but as it's an ESP32, it will only have a small range of just over 3 octaves. I toyed with the idea of scaling down a 0-5V range, but then decided I wanted the internal voltages to be real 1V/oct signals so I stuck with 0-3V3.
It isn't really designed to be integrated with anything else as such, but there is some (very limited) protection - based on things I've found online rather than any real understanding on my part (see my design blog post for details).