ESP32-S3 AI Smart Speaker Development Board

Dual microphones | AI Speech | Surround RGB Lighting

Supports Noise Reduction And Echo Cancellation. Onboard LCD and DVP interfaces for connecting external displays and cameras

ESP32-S3-AUDIO-Board, front view ESP32-S3-AUDIO-Board, functions

Features

The ESP32-S3-AUDIO-Board is based on the ESP32-S3 with 2.4GHz Wi-Fi and Bluetooth 5 (LE) support, integrates high-capacity Flash and PSRAM, built-in dual microphones, speaker, surround RGB LEDs, onboard multiple interfaces. It enables the rapid development of smart devices such as AI speakers, voice interaction systems, HMI screens and camera applications.

High-performance MCU: Adopts ESP32-S3R8 module with Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency

Wireless Connectivity: Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna

Storage Resources: Integrated 512KB SRAM, 384KB ROM, 8MB PSRAM, and external 16MB Flash memory

Voice Interaction: Dual microphone array with noise reduction and echo cancellation, suitable for accurate speech recognition and near/far-field wake-up

Clock Management: Integrated PCF85063 RTC chip, supports power-off time retention for alarm, scheduled task, and wake-up functions

Colorful Lighting Effects: Onboard 7x surround RGB LEDs, programmable for a variety of dynamic effects

HMI Interfaces: Multiple reserved buttons and battery switch for customized function development

Expansion Interfaces: SPI LCD display interface (FPC connector / pin header), DVP camera interface (24pin connector), USB, I2C, and some I/O pins (compatible with display interface I/O pins)

Multimedia Features: Onboard audio decoding chip, dual microphones and speaker header

Storage Expansion: Onboard TF card slot for storing audio files, etc.

Power Management: Built-in battery recharge management module, supports multiple power modes and low-power applications

Onboard Audio Input/Output

Supports high-quality audio processing, providing clear and high-quality audio input and output. Equipped with the offline voice model we provided to realize device control via customizable shortcut commands

ESP32-S3-AUDIO-Board, Onboard audio input modules

Supports AI Speech Interaction

Allows access to online large model platforms such as DeepSeek, Doubao, etc

ESP32-S3-AUDIO-Board, allows access to online large model platforms

Supports External LCD displays & Cameras

Onboard LCD interface, compatible with Waveshare 1.47inch / 2inch / 2.8inch / 3.5inch LCDs and other SPI displays. Onboard DVP interface, compatible with ESP32 OV2640 / OV5640 cameras

ESP32-S3-AUDIO-Board, supports LCD connector

* for reference only, please refer to the Package Content for the detailed part list.

What's On Board

ESP32-S3-AUDIO-Board, onboard components

1. ESP32-S3R8 dual-core processor, up to 240MHz operating frequency	13. IPEX1 connector for connecting external antenna, enabled via resoldering an onboard resistor
2. TCA9555PWR GPIO expander chip	14. Onboard ceramic antenna
3. PCF85063 RTC chip	15. Amplifier chip
4. Buttons	16. ES8311 chip
5. USB Type-C port	17. 16MB flash
6. Charge indicator Lithium battery charge indicator, lights up when charging, off when fully charged (the light status is uncertain when the battery is not connected)	18. RTC battery header for connecting rechargeable RTC battery
7. Battery switch	19. ES7210 chip
8. 18PIN display interface for connecting to displays with corresponding pinout	20. MP1605GTF-Z power module, supports up to 3.3V 2A output
9. Camera interface for connecting to cameras with corresponding pinout	21. Battery recharge manager
10. TF card slot	22. 7x surround RGB LEDs
11. Microphones	23. MX1.25 battery header MX1.25 2PIN connector, for 3.7V Lithium battery, supports charging and discharging
12. PIN header Compatible with display interface I/O pins	24. Speaker header

Interfaces Definition

ESP32-S3-AUDIO-Board, Onboard LCD connector

Outline Dimensions

ESP32-S3-AUDIO-Board, Onboard LCD connector

Resources & Services

Wiki: www.waveshare.com/wiki/ESP32-S3-AUDIO-Board

Package Content

Weight: 0.142 kg

ESP32-S3-AUDIO-Board x1

OPTIONAL Lithium battery (Can be installed inside)

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ESP32-S3 AI Smart Speaker Development Board, Onboard Dual Microphone Array