Espressif ESP32-LyraT Development Board

Code name: ESP32_LYRAT

Espressif ESP32-LyraT development board is based on esp32 microcontroller and uses xtensa architecture. This board has a maximum CPU frequency of 240 MHz and a flash size of 4MB.

About Espressif ESP32-LyraT

The ESP32-LyraT is a development board designed for audio applications. It features an ESP32-WROVER module with Wi-Fi and Bluetooth connectivity, an onboard audio codec (ES8388), and an SD card slot. The board supports AEC, noise reduction, and voice recognition, making it ideal for smart audio projects such as voice assistants, smart speakers, and audio streaming applications.

Where to Buy

Espressif ESP32-LyraT

Starting from

$20 per unit

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Technical Specifications

πŸ›°οΈ Connectivity

WiFi 802.11 b/g/n (2.4 GHz)
Bluetooth 4.2
BLE 4.2

🧠 Microcontroller

Model esp32
Clock Speed 240 MHz
Flash Size 4MB
Architecture xtensa

✨ Features

  • 26 digital IO pins
  • 16 external interrupt pins
  • 12 analog input pins
  • 10 PWM pins

Espressif ESP32-LyraT Pinout

The ESP32-LyraT pinout includes multiple GPIOs for audio-related applications. It provides power pins (5V, 3.3V, and GND), UART (TX, RX), I2C (SDA, SCL), and SPI (MISO, MOSI, SCK, SS) for peripheral communication. It also features dedicated I2S interfaces for audio data transmission and supports PWM and ADC functions.

Espressif ESP32-LyraT Pins Mapping Arduino IDE

Below you can find the Espressif ESP32-LyraT pinout. This development board provides 26 digital IO pins, out of which 16 can be used as external interrupt pins, 12 as analog input pins and 10 pins have Pulse-Width Modulation (PWM).

PinAnalogTouchPWMOther
0A11T1PWM
1PWMTX
2A12T2PWM
3PWMRX
4A10T0PWM
5PWM
12A15T5PWM
13A14T4PWM
14A16T6PWM
15A13T3PWM
16PWM
17PWM
18PWM
19PWM
21PWM
22PWM
23PWM
25A18PWMDAC1
26A19PWMDAC2
27A17T7PWM
32A4T9PWM
33A5T8PWM
34A6
35A7
Analog Analog input pins
Touch Touch pins
Function Function pins
RX / TX Receive/Transmit
LED_BUILTIN Built-in LED
PWM Pulse-Width Modulation

Default Tools

Bootloader toolesptool_py
Uploader toolesptool_py
Network uploader toolesp_ota
Bootloader address0x1000
Flash modedio
Boot modedio
Maximum upload size
1920 Kb
(1966080 B)
Maximum data size
320 Kb
(327680 B)

The Espressif ESP32-LyraT development board by default uses esptool_py uploader tool, esp_ota network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x1000". Flash mode and boot mode for Espressif ESP32-LyraT development board by default is dio and dio respectively.