Espressif ESP32-S3-Korvo-1

Development Board

Code name: ESP32_S3_KORVO_1

Espressif ESP32-S3-Korvo-1 is a development board based on the ESP32S3 microcontroller using XTENSA architecture.

This board features a maximum CPU frequency of 240 MHz and 16MB flash memory.

About Espressif ESP32-S3-Korvo-1

The ESP32-S3-Korvo-1 is an AI development board produced by Espressif, based on the ESP32-S3 SoC and ESP-Skainet, Espressif's speech recognition SDK. It features a three-microphone array suitable for far-field voice pick-up with low power consumption. The board supports voice wake-up and offline speech command recognition in Chinese and English languages, making it ideal for developing applications such as smart displays, smart plugs, and smart switches.

Where to Buy Espressif ESP32-S3-Korvo-1

Starting from

$50.00 per unit

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Technical Specifications

Complete technical specification details for Espressif ESP32-S3-Korvo-1

Connectivity

WiFi 802.11 b/g/n (2.4 GHz)

Bluetooth 5.0

BLE 5.0

Microcontroller

Model esp32s3

Clock Speed 240 MHz

Flash Size 16MB

Architecture xtensa

✨ Features & Pins

Digital IO 22

Analog Input 6

PWM 6

Interrupts 16

Download Full Datasheet

Quick Setup

Copy-paste configs for Espressif ESP32-S3-Korvo-1 - auto‑generated from this board's exact hardware specs.

ESP32S3 240 MHz 16MB DIO Xtensa

In Arduino IDE 2 select Esp32 S3 Korvo 1 from the esp32 by Espressif package. In PlatformIO use board = esp32-s3-devkitm-1. ESP32S3 · 240 MHz · 16MB · DIO.

Tools menu settings

Board (select in Arduino IDE) Esp32 S3 Korvo 1

CPU Frequency 240 MHz

Flash Size 16MB

Flash Mode DIO

Upload Speed 921600

Architecture Xtensa

In Arduino IDE 2, open Boards Manager, search "esp32" by Espressif and install it. Then go to Tools → Board and select "Esp32 S3 Korvo 1" for the Espressif ESP32-S3-Korvo-1.

platformio.ini


[env:esp32-s3-korvo-1]
platform  = espressif32
board     = esp32-s3-devkitm-1
framework = arduino

; Exact hardware config for Espressif ESP32-S3-Korvo-1
board_build.mcu        = esp32s3
board_build.f_cpu      = 240000000L
board_build.flash_size = 16MB
board_build.flash_mode = dio
board_upload.flash_size = 16MB

The board value is a close generic match - check PlatformIO board registry for an exact fit.

esp32: block (YAML)


esp32:
  board: esp32-s3-devkitc-1
  framework:
    type: arduino   # or "esp-idf"

# Espressif ESP32-S3-Korvo-1 - 240 MHz ESP32S3
# Flash: 16MB | USB: N/A

Paste into your device's .yaml. See ESPHome ESP32 docs for full options.

esptool.py - flash command


esptool.py \
  --chip esp32s3 \
  --baud 921600 \
  write_flash \
    --flash_mode dio \
    --flash_size 16MB \
    0x1000 bootloader.bin \
    0x8000    partitions.bin \
    0xe000    boot_app0.bin \
    0x10000   firmware.bin

Install: pip install esptool - replace firmware.bin with your binary - bootloader at 0x1000

Espressif ESP32-S3-Korvo-1 Pinout Diagram

Complete pin reference for Espressif ESP32-S3-Korvo-1

The ESP32-S3-Korvo-1 consists of a main board and a sub-board. The main board integrates the ESP32-S3-WROOM-1 module, function buttons, an SD card slot, a speaker, and USB connectors. The sub-board, known as ESP32-Korvo-Mic, contains a three-microphone array, function buttons, and addressable LEDs. The main board and sub-board are connected via an FPC cable, providing access to various GPIOs and interfaces suitable for audio and voice applications.

Useful Links

Datasheets and resources for Espressif ESP32-S3-Korvo-1

Board Datasheet

Technical specifications

ESP32S3 Datasheet

Microcontroller reference

Pin Mappings

Complete pinout and GPIO mapping for Espressif ESP32-S3-Korvo-1

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Analog	Touch	PWM
0	A0	T0	PWM
1	A1	T1	PWM
2	A2	T2	PWM
3	A3	T3	PWM
4	A4	T4	PWM
5			PWM
6			PWM
7			PWM
8			PWM
9			PWM
10			PWM
11			PWM
12			PWM
13			PWM
14			PWM
15			PWM
16			PWM
17			PWM
18			PWM
19			PWM
20			PWM
21			PWM

Legend

A0 Analog input

T0 Touch sensor

PWM PWM capable

RX/TX Serial pins

LED Built-in LED

# Pin number

Default Tools & Configuration

Build and upload settings for Espressif ESP32-S3-Korvo-1

Setting	Value
Bootloader tool	esptool_py
Uploader tool	esptool_py
Network uploader tool	esp_ota
Bootloader address	`0x1000`
Flash mode	dio
Boot mode	dio
Maximum upload size	16384 KB (16777216 bytes)
Maximum data size	320 KB (327680 bytes)