Step 19: Audio firmware
Once all of your audio is working correctly, flip the record switch, the white LED should turn off and the orange should turn on. Play a short sequence with the buttons and flip the white switch again when you want to start looping the audio you've just played. The white LED should start start blinking on the beat and you should hear your sequence looping.
Flip the mute switch to mute what you've recorded, flip it again to bring it back.
Flip the record switch to record additional audio on top of your recorded sequence, this time you will see the orange LED blinking with the beat.