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ESP32-LyraT Front
ESP32-LyraT Back


ESP32-LyraT is an open-source development board, it supporting Espressif Systems’ ADF and featuring voice wake-up, a wake-up button and an audio player.Designed for smart speakers and smart-home applications.

Espressif Systems ESP32-LyraT Audio IC Development Board is an open-source development board designed for Espressif System's Audio Development Framework (ADF). This development board integrates the ESP32-WROVER Module, a dual-core processor with 4.5MB operating memory. The ESP32-LyraTD-MSC aids fast and simple development of dual-mode (Bluetooth® + WiFi) audio solutions. This audio IC development board provides interfaces for connection with TFT display and camera module.


  • Various mainstream, both lossy and lossless, compressed audio formats, including M4A, AAC, FLAC, OGG, OPUS, MP3, etc.
  • One-key configuration and wake-up from the standby mode.
  • Support SoftAP and Station mode.
  • Various wireless protocols:Wi-Fi 802.11b/g/n, Classic BT and BLE.
  • A series of audio inputs, including Wi-Fi, BT-audio, DLNA, Line-in, etc.
  • BLE network configuration, and smart network configuration with apps, such as WeChat.
  • Two microphones for the development of near-field and far-field voice recognition applications.
  • Peripherals for differentiated demands.

Hardware Characteristics

ESP32-LyraT is an open-source development board for Espressif Systems’ Audio Development Framework (ADF). It is designed for smart speakers and smart-home applications. The dev board consists of the ESP32-WROVER module, a Micro SD card, expansion interfaces, touch buttons and several function keys.

Excellent Performance

It facilitates the quick and easy development of dual-mode (Bluetooth + Wi-Fi) audio solutions , also supporting one-key Wi-Fi configuration, a wake-up button, voice wake-up, voice recognition, cloud platform access, and an audio player.

Wide Applicability

With a great variety of voice commands, interactive voice functions and a rich peripheral set, ESP32-LyraT allows the fast development of applications relating to consumer electronics, wearables, smart home and industrial automation.


  • Interactive voice functions
  • Consumer electronics
  • Consumer wearables
  • Smart home
  • Industrial automation

Packing List

  • 1 x ESP32-LyraT Board


ESP32-LyraT User Guide: File:Esp32-lyrat user guide en.pdf

Audio Development Framework, please refer to: esp-adf

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Anonymous user #2

58 months ago
Score 0++

Would I be able to

1a. Receive an audio signal on Aux In, and convert it to a processable digital audio format (for short PDAF)

1b. Have one or more BT devices connected, and receive audio signals from there, then convert the signals to a PDAF

2. modify the PDAF (like shifting frequencies, adding or mixing signals, changing volume, do equalizing, etc etc). Can this be programmed in a common programming language, like C/C++/Java?

3a. convert the resulting digital signal back to analogue and output it to the phone jack 3b. output the resulting digital signal to a connect BT device (like speakers, headphones, etc)

4. How many concurrent BT connections (in/out) can be handled by this module?

Is this Lyra module needed for the tasks mentioned, or would the WROVER alone be able to do that?


58 months ago
Score 0++

Hi friend, We suggest that you can refer to the official site: https://www..../esp32-lyrat And contact with them for technicial support, thank you! Best regards,


Anonymous user #1

61 months ago
Score 0++


61 months ago
Score 0++


What can I help you?