Widora AIR

Development Board

Code name: WIDORA_AIR

ESP32

Widora AIR is a development board based on the ESP32 microcontroller using XTENSA architecture.

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

About Widora AIR

Compact ESP32 module with USB and I/O headers - suitable for lightweight Wi-Fi + BLE applications.

Technical Specifications

Complete technical specification details for Widora AIR

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 16MB

Architecture xtensa

✨ Features & Pins

Digital IO 7

Analog Input 10

PWM 16

Interrupts 16

Quick Setup

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

ESP32 240 MHz 16MB DIO Xtensa

In Arduino IDE 2 select Widora Air from the esp32 by Espressif package. In PlatformIO use board = esp32dev. ESP32 · 240 MHz · 16MB · DIO.

Tools menu settings

Board (select in Arduino IDE) Widora Air

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 "Widora Air" for the Widora AIR.

platformio.ini


[env:widora-air]
platform  = espressif32
board     = esp32dev
framework = arduino

; Exact hardware config for Widora AIR
board_build.mcu        = esp32
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: esp32dev
  framework:
    type: arduino   # or "esp-idf"

# Widora AIR - 240 MHz ESP32
# 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 esp32 \
  --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

Useful Links

Datasheets and resources for Widora AIR

ESP32 Datasheet

Microcontroller reference

Pin Mappings

Complete pinout and GPIO mapping for Widora AIR

Digital I/O Pins

Interrupt Pins

Analog Inputs

PWM Pins

Pin	Analog	Touch	PWM	Other
0				KEY_BUILTIN
1			PWM	TX
2	A9		PWM
3			PWM	RX
4		T6	PWM
5		T5	PWM	SS
12	A6		PWM
13	A8		PWM
14	A5		PWM
15	A7		PWM
16		T4	PWM	MOSI
17		T3	PWM	MISO
18		T2	PWM	SCK
19		T0	PWM	SCL
23		T1	PWM	SDA
25	A3		PWM	LED_BUILTIN DAC1
26	A4		PWM	DAC2
35	A2
36	A0
39	A1

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 Widora AIR

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	1280 KB (1310720 bytes)
Maximum data size	320 KB (327680 bytes)