ESP32S2 Audio

Maker	Eric Brombaugh
Type	Stereo audio effects module built on the ESP32-S2 with a WM8731 codec
Mounting	SMD
Width	8 HP
License	Proprietary (MIT covers the code, no hardware grant)
Difficulty	🌋 Fine-pitch SMD

The same circuit and layout as the maker's RP2040 Audio module with an ESP32-S2FN4R2 swapped in. Two CV inputs, stereo audio in and out, and a PCB front panel. No gerbers are published.

Documentation

• Bill of materials (BOM)
• Schematic

Links

• Source / files on GitHub
• Maker page

More from Eric Brombaugh

dspod Eurorack DSP carrier module with swappable processor daughterboards Cheep4 Low cost digital oscillator on an STM32C5 with an I2S DAC cheep3a Sub-dollar CH32V003 RISC-V digital audio generator RP2040 Audio Stereo audio effects module built on the RP2040 with a WM8731 codec S3GTA ESP32-S3 effects module with a circular LCD and touch ring G081 Audio Reverb module running the Alesis MIDIVerb algorithms on an STM32G081 f373_seq2 Three channel CV and gate step sequencer on an STM32F373

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This is a third-party open-source design, listed here as a build reference. Specs are researched from public sources; check the source repo and store for the current BOM, panel, and revision before ordering parts. Corrections welcome.

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