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Supported boards

Pick the page matching your hardware. If you are building from parts rather than using an integrated board, you want ESP32-S3 + PCM5102A.

Which board should I buy?

If you already own one of these, just find it in the table below. If you are starting from nothing, the only question that really matters is whether you need Bluetooth.

flowchart TD
    BT{"Need Bluetooth?"}
    AMP{"Want a built-in<br/>amplifier?"}

    S3["ESP32-S3 + PCM5102A<br/><small>cheapest, about $10</small>"]
    AMPBOARD["Esparagus Audio Brick, SqueezeAMP,<br/>Louder / Loud / Amped<br/><small>speakers connect directly</small>"]
    ESP32["ESP32 + PCM5102A<br/>or HiFi-ESP32<br/><small>use your own amp</small>"]

    BT -->|no| S3
    BT -->|yes| AMP
    AMP -->|yes| AMPBOARD
    AMP -->|"no, I have an amp"| ESP32

    classDef pick stroke:#26a69a,stroke-width:2px
    class S3,AMPBOARD,ESP32 pick

The short version: buy an ESP32-S3 unless you need Bluetooth, in which case you need an original ESP32.

Board Chip DAC / amp Bluetooth Ethernet Prebuilt binary
ESP32-S3 + PCM5102A ESP32-S3 External I2S yes
Waveshare ESP32-S3 ESP32-S3 External I2S yes
SqueezeAMP ESP32 TAS5756 yes yes
Esparagus Audio Brick ESP32 / S3 TAS58xx ESP32 only yes yes
Esparagus Audio Brick Dual ESP32-S3 2× TAS58xx yes yes
Esparagus Louder ESP32 / S3 TAS58xx ESP32 only yes yes
HiFi-ESP32 ESP32 / S3 PCM5100, line level ESP32 only yes yes
HiFi-Esparagus ESP32 / S3 PCM5100, line level ESP32 only yes
Loud-ESP32 ESP32 / S3 MAX98357A ESP32 only yes yes
Loud-Esparagus ESP32 2× MAX98357A yes yes
Esparagus Echo ESP32-S3 2× MAX98357A yes yes
Amped-ESP32 ESP32 / S3 PCM5100 + TPA31xx ESP32 only yes yes
Amped-Esparagus ESP32 PCM5100 + TPA31xx yes yes yes
Louder-ESP32 ESP32 / S3 TAS5805M ESP32 only yes yes
Louder-ESP32-Plus ESP32 / S3 TAS5825M ESP32 only yes yes
Seeed XIAO ESP32-C5 ESP32-C5 External I2S
Custom board any any

Bluetooth Classic A2DP is only available on the original ESP32. The ESP32-S3, S2 and C5 have Bluetooth LE only, or no Bluetooth at all, so A2DP is not possible on them. If Bluetooth matters to you, choose an ESP32-based board.

Choosing a chip

Chip Notes
ESP32-S3 The best default. Plenty of PSRAM, native USB, actively developed against.
ESP32 Choose this for Bluetooth A2DP. Tighter on RAM, so audio buffers are halved.
ESP32-S2 Works, but single core and no Bluetooth. Prebuilt binary available.
ESP32-C5 Dual-band WiFi 6, RISC-V. Needs a community PlatformIO platform — see its page.
ESP32-P4 Experimental. A config/sdkconfig.defaults.esp32p4 exists but there is no PlatformIO environment.

Full build environment list

Every PlatformIO environment, including variants without prebuilt binaries, is listed in build environments.