Need basic KA02 Audio Shield use help

Hello,

I recently purchased the KA02 Audio shield. I downloaded the sketch to the Arduino Uno and enter case commands into the serial terminal.
I receive the “Sketch is starting up” and “PU RDY” messages but haven’t figured out how to record or play back anything through the Arduino and KA02.

Does anyone have some basic instructions on what to do once the sketch is running?

BTW the record and playback functions do work okay through the buttons on the KA02 board.

Thanks.

ka02_sample_code.ino (3.29 KB)