SparkFun Serial MP3 Player Shield - MY1690X-16S (Qwiic) Brand_Arachnid Labs then setting the ADDRESS jumper

then setting the ADDRESS jumper to "0" on one board and "1" on the other makes it possible to address 128 I/O pins

2 inches of copper tape

The module allows for customising which GPIO pins these peripherals operate on though some are limited to specific pins

A free configuration and control program is available for Windows and Linux

ESP32-S3 Mini Module Dual-Core Xtensa® 32-bit LX7 Processor

SparkFun Serial MP3 Player Shield - MY1690X-16S (Qwiic) Brand_Arachnid Labs then setting the ADDRESS jumperWith the SparkFun Serial MP3 Player Shield, turn any Arduino into a standalone audio player. Play MP3 and WAV files from a microSD card with simple serial control! The SparkFun MY1690X Serial MP3 Player Shield is an awesome decoder that can store music files onto a standard microSD card, allowing you to add music or sound effects to any project. With this board, you can pull MP3 and WAV files from a microSD card and play them using only one shield,