Espressif is retiring the legacy I2S API: So with Arduino v3.0.0 (IDF v5) my old I2S integration will not be available any more. The legacy syntax is still working as long as you don't upgrade. In ...

The SDI12 library code is released under the GNU Lesser Public License (LGPL 2.1) -- See LICENSE-examples.md file for details. Example Arduino sketches are released under the BSD 3-Clause License -- ...