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ESP32-KORVO

ESP32-KORVO

Espressif Systems
The ESP32-KORVO Evaluation Board by Espressif Systems is a development tool designed for wireless communication applications. It features a ESP32-WROVER-B module, which includes a dual-core processor and 16 MB Flash to support complex processing tasks. The board supports 802.11 b/g/n Wi-Fi and Bluetooth® Smart Ready 4.x Dual Mode (BLE) connectivity, making it ideal for IoT applications and wireless data transmission. Operating at a frequency of 2.4GHz, it offers reliable interface options such as USB, Earphone jack, Speaker, and Micro SD card.
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Overview

The ESP32-KORVO is an evaluation board from Espressif built around the ESP32-WROVER-B module. It combines dual-core processing, 16 MB flash, Wi-Fi and Bluetooth connectivity, and onboard audio I/O (earphone jack, speaker) plus microSD and USB interfaces for rapid audio and wireless prototyping. The board is intended for IoT and voice/audio use cases that need local audio capture/playback alongside network connectivity.

Why Choose This Part

Because it ships with an ESP32-WROVER-B module (dual-core ESP32 plus 16 MB flash), the board can handle relatively large firmware and audio buffers while running networking stacks. Built-in audio connectors, speaker, and microSD slot reduce integration work for audio-focused prototypes. Native support in Espressif toolchains and example projects speeds development compared with piecing together separate audio and wireless modules.

Applications

Voice-controlled IoT devices
Prototype wake-word detection, voice commands, and simple voice interfaces using the onboard microphone/speaker and network connectivity.
Connected smart speakers and audio players
Build Wi-Fi/Bluetooth-enabled audio playback devices or streaming endpoints with local storage on microSD.
Audio data logging and remote monitoring
Capture audio to microSD and upload recordings or telemetry over Wi-Fi or BLE to cloud services or mobile apps.
Proof-of-concept networked sensors
Use the ESP32 cores and radios to add wireless telemetry and control to sensor/actuator prototypes that also need audio I/O.

Key Specifications

Type Transceiver; 802.11 b/g/n (Wi-Fi, WiFi, WLAN), Bluetooth Smart Ready 4.x Dual Mode (BLE)
Contents Board(s)
Frequency 2.4GHz
Utilized IC / Part ESP32-WROVER-B

Getting Started

Get source, examples, and flashing tools from Espressif: use ESP-IDF (Espressif IoT Development Framework) and Espressif's Audio Development Framework (ESP-ADF) for audio examples; the Arduino core for ESP32 is an alternative for simpler sketches. Connect the board over USB, install the required USB-to-serial drivers for your OS, and use the esp-idf/esptool.py flash workflow or the Arduino IDE to program and open a serial console.

Dev Boards

Development boards and breakout modules featuring the ESP32-KORVO or compatible chips — ready to use for prototyping.

Multiprotocol Development Tools XIAO ESP32C3 3PCS Pack - RISC-V tiny MCU board with Wi-Fi and Bluetooth5.0, battery char
Mouser 57 in stock
Cameras & Camera Modules OV5640 Camera for XIAO ESP32S3 Sense (With Heat Sink) 8/10-bit RGB RAW Output, Auto-Focus
Mouser 90 in stock
Sequent SM-A-006 Daughter Card Kit Sequent Microsystems
Daughter Cards & OEM Boards Arduino Uno, Nano, Teensy, Feather or ESP32 Raspberry Pi Replacement Kit
WiFi Development Tools - 802.11 Adafruit HUZZAH32 – ESP32 Feather Board (pre-soldered)
Mouser 139 in stock
The Arduino Nano ESP32-S3 (ABX00083) is an advanced microcontroller platform featuring the powerful Xtensa® processor co
Digi-Key Mouser 2,720 in stock

Also Consider

ESP32-WROVER-KIT Espressif Systems - Full-featured Espressif evaluation kit built around the WROVER module with USB, JTAG, and audio interfaces for more extensive debugging and development.
ESP32-WROOM-32D Espressif Systems - ESP32 module option with Wi-Fi and Bluetooth that can be used on a custom carrier board if you want to integrate ESP32 connectivity without the full KORVO evaluation board.