SVX-ESP32-S3-001
ESP32-S3 Audio, Voice & Edge AI Kit
Three-board ESP32-S3 kit for audio, voice and IoT: Wi-Fi / Bluetooth LE core board with audio codecs and IMU, dual-microphone / speaker board and Li-ion power board.
- Offline English voice commands with Espressif MultiNet7
- Full-duplex audio with acoustic echo cancellation (ESP-SR AEC)
- Wi-Fi AP / STA, Bluetooth LE multi-client, microSD, BMI270 IMU
- Seven tested ESP-IDF examples with PDF guides
ESP-IDF v6.1 · VS Code
Overview
The SVX-ESP32-S3 kit stacks three boards into one audio and Edge AI platform. The examples cover the complete path from bring-up to on-device intelligence: wireless connectivity, sensor streaming, SD-card audio playback, real-time microphone processing with echo cancellation and a voice-controlled MP3 player that recognises commands entirely on the chip.
Specifications
| MCU | Espressif ESP32-S3 (ESP32-S3-WROOM-1), dual Xtensa LX7 up to 240 MHz, 512 KB SRAM |
|---|---|
| External memory | 8 MB octal PSRAM |
| Wireless | 2.4 GHz Wi-Fi 802.11 b/g/n, Bluetooth 5 LE |
| Audio | ES8311 DAC + NS4150 amplifier (4 Ω / 3 W); ES7210 ADC with two analog MEMS microphones |
| Sensors | Bosch BMI270 6-axis IMU |
| Storage | microSD, SDMMC 1-bit |
| Host interface | Native USB 2.0 FS (USB Serial/JTAG), UART |
| Power board | USB Type-C, single-cell Li-ion charger, 3.3 V buck rails, 2.8 V / 1.5 V LDO |
| Board dimensions | Core 39 × 51 mm · mic / speaker 42 × 56 mm · power 32 × 36 mm |
Tested examples
| # | Example | Guide | Source |
|---|---|---|---|
| 01 | BLE Multi-Client (NimBLE GATT) | ZIP | |
| 02 | BMI270 IMU to UART | ZIP | |
| 03 | microSD Read / Write | ZIP | |
| 04 | SD Card MP3 Player | ZIP | |
| 05 | Real-Time Karaoke Audio with AEC | ZIP | |
| 06 | Voice-Controlled MP3 Player (MultiNet7) | ZIP | |
| 07 | Wi-Fi AP / STA HTTP | ZIP |
