Espressif ESP32-S3-EYE

Development Board

Code name: ESP32_S3_EYE

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

This board features a maximum CPU frequency of 240 MHz and 8MB flash memory.

About Espressif ESP32-S3-EYE

The ESP32-S3-EYE is a compact AI development board produced by Espressif, based on the ESP32-S3 SoC and the ESP-WHO AI development framework. It features a 2-megapixel camera, an LCD display, and a microphone, making it suitable for image recognition and audio processing applications. The board includes 8 MB of Octal PSRAM and 8 MB of flash, supporting image transmission via Wi-Fi and debugging through a Micro-USB port.

Technical Specifications

Complete technical specification details for Espressif ESP32-S3-EYE

Display

Type LCD

Size 1.3"

USB

Type Micro-USB

Camera

Model OV2640

Resolution 1600x1200

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 8MB

PSRAM 8MB

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-EYE - auto‑generated from this board's exact hardware specs.

ESP32S3 240 MHz 8MB DIO Xtensa

In Arduino IDE 2 select Esp32 S3 Eye from the esp32 by Espressif package. In PlatformIO use board = esp32-s3-devkitm-1. ESP32S3 · 240 MHz · 8MB · DIO.

Tools menu settings

Board (select in Arduino IDE) Esp32 S3 Eye

CPU Frequency 240 MHz

Flash Size 8MB

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 Eye" for the Espressif ESP32-S3-EYE.

platformio.ini


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

; Exact hardware config for Espressif ESP32-S3-EYE
board_build.mcu        = esp32s3
board_build.f_cpu      = 240000000L
board_build.flash_size = 8MB
board_build.flash_mode = dio
board_upload.flash_size = 8MB

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-EYE - 240 MHz ESP32S3
# Flash: 8MB | USB: Micro-USB

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 8MB \
    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-EYE Pinout Diagram

Complete pin reference for Espressif ESP32-S3-EYE

The ESP32-S3-EYE provides access to various GPIOs and communication interfaces through its connectors. Key components include the camera interface, LCD interface, microphone, and function buttons. The board supports multiple I/O interfaces, facilitating integration with peripherals and sensors for AIoT applications.

Useful Links

Datasheets and resources for Espressif ESP32-S3-EYE

Board Datasheet

Technical specifications

ESP32S3 Datasheet

Microcontroller reference

Pin Mappings

Complete pinout and GPIO mapping for Espressif ESP32-S3-EYE

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-EYE

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	8192 KB (8388608 bytes)
Maximum data size	320 KB (327680 bytes)