The diagram below provides a general visual reference for wiring of the components once you get to the Assembly page. This diagram was created using the software package Fritzing.

Adafruit Library for Fritzing

Adafruit uses the Adafruit Fritzing parts library to create circuit diagrams for projects. You can download the library or just grab individual parts. Get the library and parts from GitHub - Adafruit Fritzing Parts.

Wired Connections

• LRC pin from MAX98357A to RX pin on Feather ESP32
• BCLK pin from MAX98357A to TX pin on Feather ESP32
• DIN pin from MAX98357A to 14 pin on Feather ESP32
• GND pin from MAX98357A to GND pin on Feather ESP32
• VIN pin from MAX98357A to USB pin on Feather ESP32
• GAIN pin from MAX98357A to GND pin on MAX98357A
• – from speaker to – on MAX98357A
• + from speaker to + on MAX98357A

The Feather ESP32 is powered by a 5V 1A power supply.