If my PR https://github.com/PaulStoffregen/Audio/pull/439, posted 2022-06-11, ever gets merged, then it will have…I don't recall if the software has the ability to use a 2nd I2C bus or not.
Hi!You would need to wire the 2nd board's SDA & SCL signals to a different I2C port.
Later in 2023 we'll get the 32 pin chips and start making Rev D again.
Thank you very much!...or as Paul said in post #3, instead of (a), wire the I²C to a different port and get down and dirty with the Audio library to enable use of Wire1 as well as Wire - not recommended for those who are "not really strong with this"!