Most of the wiring for this project is accomplished with STEMMA QT cables. The ANO rotary encoder breakouts, alphanumeric display breakouts and bicolor LED matrix all communicate over I2C and daisy chain together to attach to the Feather RP2040.

The Fritzing diagram has the I2C addresses for each breakout listed and the Setting I2C Addresses page in this guide walks through which jumpers need to be adjusted for each breakout.

The I2S amp does require some wiring and soldering though:

• I2S amp LRC to Feather pin 11 (white wire)
• I2S amp BCLK to Feather pin 10 (yellow wire)
• I2S amp DIN to Feather pin 9 (blue wire)
• I2S amp GND to Feather GND (black wire)
• I2S amp VIN to Feather USB (red wire)
• I2S amp GAIN to I2S amp GND (green wire)

The speaker is connected to the I2S amp speaker output terminal block.

• Speaker negative to I2S amp - output (black wire)
• Speaker positive to I2S amp + output (red wire)