I2S Mic

• Mic VIN to Feather 3.3V (red wire)
• Mic GND to Feather GND (black wire)
• Mic BCLK to Feather D5 (blue wire)
• Mic LRCL to Feather D6 (green wire)
• Mic DOUT to Feather D9 (yellow wire)

I2S Amp

• Amp Vin to Feather 3.3V (red wire)
• Amp GND to Feather GND (black wire)
• Amp BCLK to Feather D10 (white wire)
• Amp LRC to Feather D11 (cyan wire)
• Amp DIN to Feather D12 (orange wire)
• Speaker + to Amp terminal block + (red wire)
• Speaker - to Amp terminal block - (black wire)

LED Push Button

• Button output to Feather D13 (purple wire)
• Button GND to Feather GND (black wire)
• LED - to Feather GND (black wire)
• LED + to Feather A0 (grey wire)

Toggle Switch

• Toggle output to Feather EN (pink wire)
• Toggle GND to Feather GND (black wire)