WiFiduino32S3

Development Board

Code name: WiFiduino32S3

WiFiduino32S3 is a development board based on the ESP32S3 microcontroller using XTENSA architecture.

This board features a maximum CPU frequency of 240 MHz and 4MB flash memory.

About WiFiduino32S3

An ESP32-S3-based board designed for Arduino compatibility, offering Wi-Fi and Bluetooth connectivity for various projects.

Technical Specifications

Complete technical specification details for WiFiduino32S3

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 4MB

Architecture xtensa

✨ Features & Pins

Digital IO 48

Analog Input 20

PWM 15

Interrupts 46

Quick Setup

Copy-paste configs for WiFiduino32S3 - auto‑generated from this board's exact hardware specs.

ESP32S3 240 MHz 4MB DIO Xtensa

In Arduino IDE 2 select Wifiduino32s3 from the esp32 by Espressif package. In PlatformIO use board = esp32-s3-devkitm-1. ESP32S3 · 240 MHz · 4MB · DIO.

Tools menu settings

Board (select in Arduino IDE) Wifiduino32s3

CPU Frequency 240 MHz

Flash Size 4MB

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 "Wifiduino32s3" for the WiFiduino32S3.

platformio.ini


[env:wifiduino32s3]
platform  = espressif32
board     = esp32-s3-devkitm-1
framework = arduino

; Exact hardware config for WiFiduino32S3
board_build.mcu        = esp32s3
board_build.f_cpu      = 240000000L
board_build.flash_size = 4MB
board_build.flash_mode = dio
board_upload.flash_size = 4MB

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"

# WiFiduino32S3 - 240 MHz ESP32S3
# Flash: 4MB | 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 4MB \
    0x0 bootloader.bin \
    0x8000    partitions.bin \
    0xe000    boot_app0.bin \
    0x10000   firmware.bin

Install: pip install esptool - replace firmware.bin with your binary - bootloader at 0x0

WiFiduino32S3 Pinout Diagram

Complete pin reference for WiFiduino32S3

Useful Links

Datasheets and resources for WiFiduino32S3

ESP32S3 Datasheet

Microcontroller reference

Pin Mappings

Complete pinout and GPIO mapping for WiFiduino32S3

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Analog	PWM	Other
0
1	A3	PWM
2	A2	PWM
3		PWM	MOSI
4	A4	PWM	SDA
5	A5	PWM	SCL
6	A1	PWM
7	A0	PWM
14		PWM
19		PWM	SCK
20		PWM	MISO
21		PWM
41		PWM
42		PWM
44		PWM	RX
45		PWM	TX
46			SS
47
48			LED_BUILTIN
64			LED_BRIGHTNESS

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 WiFiduino32S3

Setting	Value
Bootloader tool	esptool_py
Uploader tool	esptool_py
Network uploader tool	esp_ota
Bootloader address	`0x0`
Flash mode	dio
Boot mode	qio
PSRAM type	qspi
Maximum upload size	1280 KB (1310720 bytes)
Maximum data size	320 KB (327680 bytes)