First, check if your board has the audiomp3 module available for import. Then, scan below for the general level of support for that microcontroller family.

SAMD51 (Metro M4 & Others)

• Play one 128kbit/s file
• Mix two 64kbit/s files
• Plays from the onboard CIRCUITPY drive or SD card with sdcardio
• Streaming not available

nRF52840 (Circuit Playground Bluefruit & Others)

• Play one 128kbit/s file
• Mix two 64kbit/s files
• Plays from CIRCUITPY or SD card with sdcardio
• Streaming not available

RP2040 (e.g., Feather RP2040)

• Play one 128kbit/s file
• Mixing streams: not tested
• Plays from CIRCUITPY or SD card with sdcardio
• Streaming on Pico W: not tested

Espressif ESP32-S3 w/PSRAM (e.g., Metro ESP32-S3)

• Plays one 128kbit/s file
• Mix two 64kbit/s files
• Play from CIRCUITPY or SD card with sdcardio
• Play streams from compatible http & https services using built-in WiFi

Espressif ESP32-S2 w/PSRAM (e.g., Metro ESP32-S2)

• Play one 128kbit/s stream
• Mixing streams: not tested
• SD cards: not tested
• Play streams from compatible http & https services using built-in WiFi

Espressif ESP32 w/PSRAM (e.g., Feather ESP32 V2)

• Play one 128kbit/s stream
• Mixing streams: not tested
• SD cards: not tested
• Play streams from compatible http & https services using built-in WiFi