This is just an working example of how to send audio over tcp via the Adafruit PDM MEMS Microphone Breakout. The code is taken from the excellent Microphone_PDM library (https://github.com/particle-iot/Microphone_PDM), I am not the author. Very useful library!
This is mostly a storage place while I slowly add to this project while I also learn more about the hardware side of things and C++.