WAVESHARE ESP32-S3 AI Smart Speaker Development Board Dual-Mic Noise Reduction Echo Cancellation Surround RGB Light Effect 1. Widely used in the rapid development of intelligent products such as AI speakers, voice interaction, HMI with screen applications and camera applications 2. High-performance main control: equipped with ESP32-S3R8, Xtensa 32-bit LX7 dual-core processor, main frequency up to 240MHz 3. Wireless connectivity: support for 2.4GHz Wi-Fi (802.11 bgn) and Bluetooth 5 (LE), on-board antenna 4. Storage resources: built-in 512KB SRAM, 384KB ROM, stacked 8MB PSRAM, external 16MB Flash 5. Voice interaction: dual digital microphone arrays, support noise reduction and echo cancellation, suitable for accurate voice recognition and near-fieldfar-field wake up 6. Clock management: integrated PCF85063 RTC chip, support RTC power-down hold time, can be used for alarms, timed tasks or wake-up and so on 7. Colorful light effects: onboard 7 ring RGB color lights, programmable to achieve a variety of dynamic light effects 8. Human-computer interaction: reserve multiple keys and battery switch, convenient for customized function development 9. Extended interface: - SPI LCD screen interface (FPC Pin) - DVP Camera Interface (24PIN) - USB, I2C and some IO pins (compatible with screen interface pins) 10. Multimedia functions: onboard audio decoder chip, MIC and speaker interface 11. Storage expansion: support for Micro SD card slot, you can store audio files, etc. 12. Power management: built-in battery charge management module, support for a variety of power modes and low-power applications 13. Size: about 5.8 x 4.6 x 4.37cm