Espressif ESP32-LyraT-Mini V1.2 Audio Development Board
SKU: IOWC-0718
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Espressif ESP32-LyraT-Mini V1.2 Audio Development Board

₹2,729.00 (Inclusive of all taxes)
Out of Stock

The Espressif ESP32-LyraT-Mini V1.2 is a feature-rich development board designed for audio and voice IoT applications, integrating the ESP32 SoC with an ES8311 mono audio codec, headphone jack, and speaker outputs for embedded audio projects.

Features

  • ESP32-based platform with dual-core processing, Wi-Fi, and Bluetooth for connected audio applications.
  • Integrated ES8311 low-power mono audio codec with ADC and DAC for high-quality audio capture and playback.
  • Dedicated audio outputs include a 3.5mm stereo headphone jack (mono signal) and a 4-ohm speaker terminal.
  • Generous 8 MB flash and 8 MB PSRAM for storing and buffering audio data and firmware.
  • Comprehensive I/O interfaces: I2S, I2C, SDIO, ADC, UART, and GPIO for sensor and peripheral expansion.

Out of stock

Description

The Espressif ESP32-LyraT-Mini V1.2 is a compact development board engineered specifically for audio-focused Internet of Things development. It combines the wireless connectivity and processing power of the ESP32 with a dedicated audio subsystem, creating an ideal platform for voice assistants, smart speakers, intercoms, and audio streaming devices.

Built around the low-power ES8311 mono codec, the board provides a complete audio signal chain from microphone input to amplified speaker output. Its integrated power management supports operation via USB or an external battery, with charging status indicators. The board’s form factor and extensive GPIO breakouts facilitate integration into prototypes and final products requiring embedded audio functionality.

Key Features

  • Optimized for audio applications with integrated ES8311 mono audio codec for ADC and DAC functions.
  • Direct connectivity for headphones via 3.5mm jack and external speakers via screw terminal.
  • USB-to-UART bridge provides both programming/debugging interface and stable 5V power supply.
  • Comprehensive power management with physical on/off switch, battery charging circuit, and status LEDs.
  • Ample memory with 8 MB flash for firmware and 8 MB PSRAM for audio data buffering.
  • Rich set of interfaces including I2S for digital audio, I2C for control, SDIO for storage, ADC, UART, and GPIO.
  • Fully compatible with Espressif's ESP-IDF, Arduino core, and MicroPython for rapid firmware development.

Applications

  • Voice-controlled smart home devices and AI assistants.
  • Internet audio streaming players and wireless speakers.
  • Intercom systems and voice notification devices.
  • IoT gadgets requiring audio feedback or voice user interfaces.
  • Prototyping platforms for embedded audio processing and machine learning at the edge.

Technical Specifications

Microcontroller/SoCESP32 (Dual-Core)
Wireless ProtocolsWi-Fi 802.11 b/g/n, Bluetooth 4.2 BR/EDR and BLE
Audio CodecES8311 Mono ADC & DAC
Flash Memory8 MB
PSRAM8 MB
Audio Outputs3.5mm Headphone Jack (Mono), 4Ω Speaker Terminal
InterfacesI2S, I2C, SDIO, ADC, UART, GPIO
Power SupplyUSB 5V or External Battery
Dimensions (Shipping)140mm x 110mm x 60mm
Weight (Shipping)0.07 kg

Frequently Asked Questions

What development frameworks are supported for programming the ESP32-LyraT-Mini?

The board is fully supported by Espressif's official ESP-IDF framework, providing low-level control over Wi-Fi, Bluetooth, and I2S audio. It is also compatible with the Arduino core for ESP32 via the Arduino IDE or PlatformIO, and MicroPython for rapid scripting. Audio examples for the ES8311 codec are available in the ESP-ADF (Audio Development Framework).

How do I connect an external microphone or audio input to the board?

The ES8311 codec includes a microphone input channel. You typically connect an electret microphone module to the designated analog input pins on the board's GPIO header, configuring the codec via I2C commands. Refer to the ESP32-LyraT-Mini schematic and the ESP-ADF examples for specific wiring and initialization code to enable audio capture.

Can I power the ESP32-LyraT-Mini with a battery, and how is charging managed?

Yes, the board includes a battery management circuit. You can connect a single-cell Li-ion or Li-Po battery (typically 3.7V) to the dedicated battery socket. The onboard charging circuit manages charging via the USB port, indicated by a red LED. Use the physical power switch to toggle between USB and battery power for portable audio applications.

Package Includes

  • 1 x Espressif ESP32-LyraT-Mini V1.2 Development Board

Additional Information

Weight 0.07 kg
Dimensions 11 × 14 × 6 cm

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