开云体育

Thanks Bill, I appreciate your help.
I've had a lot of years and experience building electronic gadgets but has really perplexed me.

I've been through 2 sets of Teensys, adapter boards, and audio hats, with the same results. They say the definition of crazy is to keep doing the same thing and expecting a different outcome, so though I have 2 more sets of teensys, boards, and audio hats. I don't want to a keep doing the same thing.
My next attempt? will be to test the teensy separately on a different I2C breadboard circuit.

Then if that is successful, I will dig into the audio hat documentation and see if I can breadboard a working circuit with it.?

Of course, I will try the one suggestion from you that I haven't tried yet, i.e. building and connecting the front panel board.?

Best regards,

John K1JO