ESP32-S3 dual-mode speaker/USB DAC/ES8156

## USB / WIFI dual-mode speaker

> ~~In fact, I originally wanted to make a three-mode speaker, but after the hardware was ready, I discovered that the S3’s Bluetooth only supports BLE~~

! [pdd.jpg] Promotional picture of a sales platform, priced at 3.8 yuan with free shipping .

This project upgrades the original mono channel and two cables (USB power + audio) to a dual channel, Type-C one-line connection, and adds functions such as WIFI and SD card playback.

- Support touch to adjust host volume
- Compatible with most PCs, PADs, and mobile phones
- Support up to 24bit / 96000hz

### Hardware solution

! [v1.0.jpg] (The picture shows the v1.0 version PCB)

| MCU | ESP32-S3 |
| --- | -------- | | DAC |
ES8156
| The two touch buttons use the `F10-16-6-0.5` model touch spring to extend to the case. The motherboard is adapted to the bayonet of the case and can be inserted directly. The DAC board needs to be fixed with hot melt glue. ![1.jpg] ### Related resources [firmware code](https://github.com/hyunel/esp32-s3-speakers) (use VSCode to install the ESP-IDF plug-in, open it, compile and burn in) - - - **NOTE:** > Firmware is still under development, currently known issues: * USB Audio loses sync after a while on some devices (sounds scratchy) * USB HID input occasionally deadlocks (volume button doesn't work) ) * WIFI DLNA has not been implemented yet * SD card playback has not yet been implemented