ESP32-LYRAT - ESP32 Audio Development Board

Esp32 Audio Development Board, Integrates Esp32-Wrover/Esp32-Wrover-B

Highlights:

• A variety of 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.
• 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 such as WeChat.
• Two microphones for the development of near-field and far-field voice recognition applications.
• Peripherals for differentiated demands.

Key Features:

ESP32-WROVER Module

ESP32-WROVER is a powerful, general-purpose Wi-Fi+BT+BLE MCU module that
targets a wide variety of applications, ranging from low-power sensor networks to the
most demanding tasks, such as voice encoding, music streaming and MP3 decoding.

Micro SD Card

Supports SPI,1-bit and 4-bit modes.

Audio Output AUX_IN

Works as the input to the ES8388 codec.

USB-UART Interface and USB Power Supply Interface

• USB-UART Interface: the integrated CP2102N-A01-GQFN28 chip is used to convert
  USB to UART and supports a baud rate of up to 3 Mbit/s.
• USB Power Supply Interface: the working current of the Wi-Fi module is very high at
  peak times. Therefore, a power supply with a capacity of more than 500 mA is
  Recommended.

Touch Buttons

Four touch buttons are available on the development board: Play, Set, Vol+ and Vol?.
Used as keys for audio functions, they bring such advantages as reduced BOM cost
and design flexibility.

Speaker Interfaces

Supports two external speakers.

Resources

User Guide