ESP32 LyraTD – AI스피커 개발보드

ESP32 LyraTD 는 AI 스피커 개발보드로, WiFi, BT 오디오, 음성인식등 AI 스피커를 위한 포괄적인 기능을 제공합니다. ESP32 LyraTD 는 ESP32 ADF와 Amazon Voice Service SDK를 지원합니다. ESP32 LyraTD MSC는 저전력, Lightweight, cost-effective smart audio 솔루션으로 최적의 개발보드 입니다.

  • AI speaker 기능 : Acoustic Echo Cancellation(AEC), Automatic Speech Recognition(ASR), Wake-up Interrupt, Voice Interaction
  • Three digital MICs : far-field voice pick-up (from a distance of one to five meters).
  • Access to multiple cloud platforms : DuerOS, Amazon, Tmall Genie, Turing, JD and iFLYTEK.
  • HTTP live streaming : Internet radio and Ximalaya.
  • The dual-board design integrates an LED light strip and fully-functional buttons.
  • Audio inputs over Wi-Fi, BT, DLNA, SD-Card.
  • A variety of network configurations, such as Smartconfig, BLE, and Air-kiss.
  • Wi-Fi 802.11b/g/n, Classic BT and BLE in the 2.4GHz band.
  • Multiple audio formats including M4A, AAC, FLAC, OGG, OPUS, MP3, AMR.
개발보드 하드웨어 Specification
  • ESP32-WROVER-B Module
  • DSP (Digital Signal Processing) chip
  • Three digital Microphones that support far-field voice pick-up
  • 2 x 3-watt Speaker output
  • Headphone output
  • MicroSD Card slot (1 line or 4 lines)
  • Individually controlled Twelve LEDs distributed in a circle on the board’s edge
  • Six Function Buttons that may be assigned user functions
  • Several interface ports: I2S, I2C, SPI and JTAG
  • Integrated USB-UART Bridge Chip
  • Li-ion Battery-Charge Management
내장 Audio DSP 
  • ESP32-LyraTD MSC : Microsemi Audio DSP
  • ESP32-LyraTD DSPG : DSPG Audio DSP
  • ESP32-LyraTD SYNA : Synaptics Audio DSP