Espressif 32

Registry:

https://registry.platformio.org/platforms/platformio/espressif32

Configuration:

platform = platformio/espressif32

ESP32 is a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and Bluetooth. ESP32 integrates an antenna switch, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules.

For more detailed information please visit vendor site.

Tutorials

• Get started with Arduino and ESP32-DevKitC: debugging and unit testing

• Get started with ESP-IDF and ESP32-DevKitC: debugging, unit testing, project analysis

• Video: Free Inline Debugging for ESP32 and Arduino Sketches

Configuration

CPU Frequency

See board_build.f_cpu option from “platformio.ini” (Project Configuration File)

[env:myenv]
; set frequency to 160MHz
board_build.f_cpu = 160000000L

FLASH Frequency

Please use board_build.f_flash option from “platformio.ini” (Project Configuration File) to change a value. Possible values:

• 40000000L (default)

• 80000000L

[env:myenv]
; set frequency to 80MHz
board_build.f_flash = 80000000L

FLASH Mode

Flash chip interface mode. This parameter is stored in the binary image header, along with the flash size and flash frequency. The ROM bootloader in the ESP chip uses the value of these parameters in order to know how to talk to the flash chip.

Please use board_build.flash_mode option from “platformio.ini” (Project Configuration File) to change a value. Possible values:

• qio

• qout

• dio

• dout

[env:myenv]
board_build.flash_mode = qio

External RAM (PSRAM)

You can enable external RAM using the next extra build_flags in “platformio.ini” (Project Configuration File) depending on a framework type.

Framework Arduino:

[env:myenv]
platform = platformio/espressif32
framework = arduino
board = ...
build_flags =
    -DBOARD_HAS_PSRAM
    -mfix-esp32-psram-cache-issue

Framework Espressif IoT Development Framework:

[env:myenv]
platform = platformio/espressif32
framework = espidf
board = ...
build_flags =
    -DCONFIG_SPIRAM_CACHE_WORKAROUND

More details are located in the official ESP-IDF documentation - Support for external RAM.

Debug Level

Please use one of the next build_flags to change debug level. A build_flags option could be used only the one time per build environment. If you need to specify more flags, please separate them with a new line or space.

Actual information is available in Arduino for ESP32 Board Manifest. Please scroll to esp32.menu.DebugLevel section.

[env:myenv]
platform = ...
board = ...
framework = arduino

;;;;; Possible options ;;;;;;

; None
build_flags = -DCORE_DEBUG_LEVEL=0

; Error
build_flags = -DCORE_DEBUG_LEVEL=1

; Warn
build_flags = -DCORE_DEBUG_LEVEL=2

; Info
build_flags = -DCORE_DEBUG_LEVEL=3

; Debug
build_flags = -DCORE_DEBUG_LEVEL=4

; Verbose
build_flags = -DCORE_DEBUG_LEVEL=5

Upload Speed

You can set custom upload speed using upload_speed option from “platformio.ini” (Project Configuration File)

[env:myenv]
upload_speed = 9600

Erase Flash

Please pio run --target the next command to erase the entire flash chip (all data replaced with 0xFF bytes):

> pio run --target erase

# or short version

> pio run -t erase

Partition Tables

You can create a custom partitions table (CSV) following ESP32 Partition Tables documentation. PlatformIO uses default partition tables depending on a framework type:

• default.csv for Arduino (show pre-configured partition tables)

• partitions_singleapp.csv for Espressif IoT Development Framework (show pre-configured partition tables)

To override default table please use board_build.partitions option in “platformio.ini” (Project Configuration File).

Warning

SPIFFS partition MUST have configured “Type” as “data” and “SubType” as “spiffs”. For example, spiffs, data, spiffs, 0x291000, 1M,

Examples:

; 1) A "partitions_custom.csv" in the root of project directory
[env:custom_table]
board_build.partitions = partitions_custom.csv

; 2) Switch between built-in tables
; https://github.com/espressif/arduino-esp32/tree/master/tools/partitions
; https://github.com/espressif/esp-idf/tree/master/components/partition_table
[env:custom_builtin_table]
board_build.partitions = no_ota.csv

Embedding Binary Data

Sometimes you have a file with some binary or text data that you’d like to make available to your program - but you don’t want to reformat the file as C source.

There are two options board_build.embed_txtfiles and board_build.embed_files which can be used for embedding data. The only difference is that files specified in board_build.embed_txtfiles option are null-terminated in the final binary.

[env:myenv]
platform = platformio/espressif32
board = ...
board_build.embed_txtfiles =
  src/private.pem.key
  src/certificate.pem.crt
  src/aws-root-ca.pem

Note

In case with ESP-IDF, these files also need to be specified in CMakeLists.txt using the target_add_binary_data function.

The file contents will be added to the .rodata section in flash, and are available via symbol names as follows:

extern const uint8_t aws_root_ca_pem_start[] asm("_binary_src_aws_root_ca_pem_start");
extern const uint8_t aws_root_ca_pem_end[] asm("_binary_src_aws_root_ca_pem_end");
extern const uint8_t certificate_pem_crt_start[] asm("_binary_src_certificate_pem_crt_start");
extern const uint8_t certificate_pem_crt_end[] asm("_binary_src_certificate_pem_crt_end");
extern const uint8_t private_pem_key_start[] asm("_binary_src_private_pem_key_start");
extern const uint8_t private_pem_key_end[] asm("_binary_src_private_pem_key_end");

The names are generated from the full name of the file. Characters /, ., etc. are replaced with underscores. The _binary + _nested_folder prefix in the symbol name is added by “objcopy” and is the same for both text and binary files.

Note

With the ESP-IDF framework symbol names should not contain path to the files, for example _binary_private_pem_key_start instead of _binary_src_private_pem_key_start.

See full example with embedding Amazon AWS certificates:

• https://github.com/platformio/platform-espressif32/tree/develop/examples/espidf-aws-iot

Uploading files to file system

1. Create new project using PlatformIO IDE or initialize project using PlatformIO Core (CLI) and pio project init (if you have not initialized it yet)

2. Create data folder (it should be on the same level as src folder) and put files here. Also, you can specify own location for data_dir

3. Run “Upload File System image” task in PlatformIO IDE or use PlatformIO Core (CLI) and pio run --target command with uploadfs target.

The SPIFFS file system is used by default in order to keep legacy project compatible. To choose LittleFS or FFat as the file system, it should be explicitly specified using board_build.filesystem option in “platformio.ini” (Project Configuration File), for example:

[env:myenv]
platform = platformio/espressif32
framework = arduino
board = ...
board_build.filesystem = littlefs

Possible values for board_build.filesystem are spiffs (default), littlefs and fatfs.

To upload SPIFFS image using OTA update please specify upload_port / --upload-port as IP address or mDNS host name (ending with the *.local).

Examples:

• SPIFFS for Arduino

• LittleFS for Arduino

• FFat for Arduino

• SPIFFS for ESP-IDF

Over-the-Air (OTA) update

Warning

Please make sure to read the theory behind the OTA updates in the Over The Air Updates (OTA) article.

1. Create a new project using PlatformIO Home or initialize a project via PlatformIO Core (CLI) and pio project init (if you have not initialized it yet)

2. Copy the basicOTA example for Arduino or Simple OTA example for ESP-IDF to src_dir and configure your WiFi credentials (SSID and password).

3. Compile the project to ensure there are no syntax errors in the code.

To upload the binary you can either specify the upload address directly in the CLI command using the pio run --upload-port option:

pio run --target upload --upload-port IP_ADDRESS_HERE or mDNS_NAME.local

For example:

pio run -t upload --upload-port 192.168.0.255
pio run -t upload --upload-port myesp32.local

Or use the upload_port option in “platformio.ini” (Project Configuration File). Please note that you also need to set upload_protocol to espota:

[env:myenv]
upload_protocol = espota
upload_port = IP_ADDRESS_HERE or mDNS_NAME.local

For example:

[env:myenv]
platform = platformio/espressif32
board = esp32dev
framework = arduino
upload_protocol = espota
upload_port = 192.168.0.255

Authentication and upload options

You can pass additional options/flags to OTA uploader using upload_flags option in “platformio.ini” (Project Configuration File)

[env:myenv]
upload_protocol = espota
; each flag in a new line
upload_flags =
    --port=3232

Available flags

• --port=ESP_PORT ESP32 OTA Port. Default 8266

• --auth=AUTH Set authentication password

• --spiffs Use this option to transmit a SPIFFS image and do not flash the module

For the full list with available options please run

~/.platformio/packages/framework-arduinoespressif32/tools/espota.py --help

Usage: espota.py [options]

Transmit image over the air to the esp32 module with OTA support.

Options:
  -h, --help            show this help message and exit

  Destination:
    -i ESP_IP, --ip=ESP_IP
                        ESP32 IP Address.
    -I HOST_IP, --host_ip=HOST_IP
                        Host IP Address.
    -p ESP_PORT, --port=ESP_PORT
                        ESP32 ota Port. Default 3232
    -P HOST_PORT, --host_port=HOST_PORT
                        Host server ota Port. Default random 10000-60000

  Authentication:
    -a AUTH, --auth=AUTH
                        Set authentication password.

  Image:
    -f FILE, --file=FILE
                        Image file.
    -s, --spiffs        Use this option to transmit a SPIFFS image and do not
                        flash the module.

  Output:
    -d, --debug         Show debug output. And override loglevel with debug.
    -r, --progress      Show progress output. Does not work for ArduinoIDE
    -t TIMEOUT, --timeout=TIMEOUT
                        Timeout to wait for the ESP32 to accept invitation

Warning

For windows users. To manage OTA check the ESP wifi network profile isn’t checked on public be sure it’s on private mode``

Using Arduino Framework with Staging version

PlatformIO will install the latest Arduino Core for ESP32 from https://github.com/espressif/arduino-esp32. The Git should be installed in a system. To update Arduino Core to the latest revision, please open PlatformIO IDE and navigate to PlatformIO Home > Platforms > Updates.

1. Please install PlatformIO IDE

2. Initialize a new project, open “platformio.ini” (Project Configuration File) and specify the link to the framework repository in platform_packages section. For example,

   [env:esp32dev]
   platform = platformio/espressif32
   board = esp32dev
   framework = arduino
   platform_packages =
       platformio/framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git
   

3. Try to build the project

4. If you see build errors, then try to build this project using the same stage with Arduino IDE

5. If it works with Arduino IDE but doesn’t work with PlatformIO, then please file a new issue with attached information:

   • test project/files

   • detailed log of build process from Arduino IDE (please copy it from console to https://hastebin.com)

   • detailed log of build process from PlatformIO Build System (please copy it from console to https://hastebin.com)

Arduino Core Wiki

Tips, tricks and common problems: http://desire.giesecke.tk/index.php/2018/01/30/esp32-wiki-entries/

Examples

Examples are listed from Espressif 32 development platform repository:

• espidf-storage-sdcard

• arduino-usb-keyboard

• espidf-coap-server

• espidf-storage-spiffs

• espidf-exceptions

• arduino-blink

• espidf-ble-eddystone

• espidf-ulp-adc

• espidf-ulp-pulse

• espidf-arduino-wifiscan

• espidf-http-request

• espidf-arduino-blink

• espidf-hello-world

• arduino-ble5-advertising

• espidf-peripherals-usb

• espidf-peripherals-uart

• arduino-wifiscan

Debugging

Debugging - “1-click” solution for debugging with a zero configuration.

Pinout Diagram

JTAG Wiring Connections

Board Pin	JTAG Tool Pin
IO13	TCK
IO12	TDI
IO15	TDO
IO14	TMS
EN	RST
GND	GND

Tools & Debug Probes

Supported debugging tools are listed in “Debug” column. For more detailed information, please scroll table by horizontal. You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions.

Boards listed below have on-board debug probe and ARE READY for debugging! You do not need to use/buy external debug probe.

Name	MCU	Frequency	Flash	RAM
Espressif ESP-WROVER-KIT	ESP32	240MHz	4MB	320KB
Espressif ESP32-S2-Kaluga-1 Kit	ESP32S2	240MHz	4MB	320KB
Espressif ESP32-S3-DevKitC-1-N8 (8 MB QD, No PSRAM)	ESP32S3	240MHz	8MB	320KB
Espressif ESP32-S3-DevKitM-1	ESP32S3	240MHz	8MB	320KB
Espressif ESP32-S3-USB-OTG	ESP32S3	240MHz	8MB	320KB
Lion:Bit S3 STEM Dev Board	ESP32S3	240MHz	4MB	320KB

Boards listed below are compatible with Debugging but DEPEND ON external debug probe. They ARE NOT READY for debugging. Please click on board name for the further details.

Name	MCU	Frequency	Flash	RAM
4D Systems GEN4-ESP32 16MB (ESP32S3-R8N16)	ESP32S3	240MHz	16MB	320KB
AI Thinker ESP32-CAM	ESP32	240MHz	4MB	320KB
ALKS ESP32	ESP32	240MHz	4MB	320KB
AZ-Delivery ESP-32 Dev Kit C V4	ESP32	240MHz	4MB	520KB
Adafruit ESP32 Feather	ESP32	240MHz	4MB	320KB
Adafruit ESP32-S2 Feather Development Board	ESP32S2	240MHz	4MB	320KB
Adafruit Feather ESP32 V2	ESP32	240MHz	8MB	320KB
Adafruit Feather ESP32-S2	ESP32S2	240MHz	4MB	320KB
Adafruit Feather ESP32-S2 Reverse TFT	ESP32S2	240MHz	4MB	320KB
Adafruit Feather ESP32-S2 TFT	ESP32S2	240MHz	4MB	320KB
Adafruit Feather ESP32-S3 2MB PSRAM	ESP32S3	240MHz	4MB	320KB
Adafruit Feather ESP32-S3 No PSRAM	ESP32S3	240MHz	8MB	320KB
Adafruit Feather ESP32-S3 Reverse TFT	ESP32S3	240MHz	4MB	320KB
Adafruit Feather ESP32-S3 TFT	ESP32S3	240MHz	4MB	320KB
Adafruit FunHouse	ESP32S2	240MHz	4MB	320KB
Adafruit ItsyBitsy ESP32	ESP32	240MHz	8MB	320KB
Adafruit MagTag 2.9	ESP32S2	240MHz	4MB	320KB
Adafruit MatrixPortal ESP32-S3	ESP32S3	240MHz	8MB	320KB
Adafruit Metro ESP32-S2	ESP32S2	240MHz	4MB	320KB
Adafruit Metro ESP32-S3	ESP32S3	240MHz	16MB	320KB
Adafruit QT Py ESP32	ESP32	240MHz	8MB	320KB
Adafruit QT Py ESP32-C3	ESP32C3	160MHz	4MB	320KB
Adafruit QT Py ESP32-S2	ESP32S2	240MHz	4MB	320KB
Adafruit QT Py ESP32-S3 (4M Flash 2M PSRAM)	ESP32S3	240MHz	4MB	320KB
Adafruit QT Py ESP32-S3 No PSRAM	ESP32S3	240MHz	8MB	320KB
Adafruit Qualia ESP32-S3 RGB666	ESP32S3	240MHz	16MB	320KB
Adafruit pyCamera S3	ESP32S3	240MHz	4MB	320KB
Ai-Thinker ESP-C3-M1-I-Kit	ESP32C3	160MHz	4MB	320KB
Ai-Thinker NodeMCU-32S2 (ESP-12K)	ESP32S2	240MHz	4MB	320KB
AirM2M CORE ESP32C3	ESP32C3	160MHz	4MB	320KB
Arduino Nano ESP32	ESP32S3	240MHz	16MB	320KB
ArtronShop ATD1.47-S3	ESP32S3	240MHz	8MB	320KB
ArtronShop IOXESP32	ESP32	240MHz	4MB	320KB
ArtronShop IOXESP32PS	ESP32	240MHz	4MB	320KB
Aventen S3 Sync	ESP32S3	240MHz	16MB	320KB
BPI-Leaf-S3	ESP32S3	240MHz	8MB	320KB
Blinker WiFiduino32S3	ESP32S3	240MHz	8MB	320KB
Blinker WiFiduinoV2 (ESP32-C3)	ESP32C3	160MHz	4MB	320KB
Connaxio’s Espoir	ESP32	240MHz	4MB	320KB
Cytron Maker Feather AIoT S3	ESP32S3	240MHz	8MB	320KB
D-duino-32	ESP32	240MHz	4MB	320KB
DFRobot Beetle ESP32-C3	ESP32C3	160MHz	4MB	320KB
DFRobot Firebeetle 2 ESP32-E	ESP32	240MHz	4MB	320KB
DFRobot Firebeetle 2 ESP32-S3	ESP32S3	240MHz	4MB	320KB
DFRobot Romeo ESP32-S3	ESP32S3	240MHz	16MB	320KB
DOIT ESP32 DEVKIT V1	ESP32	240MHz	4MB	320KB
DOIT ESPduino32	ESP32	240MHz	4MB	320KB
Deneyap Kart	ESP32	240MHz	4MB	320KB
Deneyap Kart 1A	ESP32	240MHz	4MB	320KB
Deneyap Kart 1A v2	ESP32S3	240MHz	4MB	320KB
Deneyap Kart G	ESP32C3	160MHz	4MB	320KB
Deneyap Mini	ESP32S2	240MHz	4MB	320KB
Deneyap Mini v2	ESP32S2	240MHz	4MB	320KB
Deparment of Alchemy MiniMain ESP32-S2	ESP32S2	240MHz	4MB	320KB
Dongsen Tech Pocket 32	ESP32	240MHz	4MB	320KB
ESP32 FM DevKit	ESP32	240MHz	4MB	320KB
ESP32 Pico Kit	ESP32	240MHz	4MB	320KB
ESP32-S3 PowerFeather	ESP32S3	240MHz	8MB	320KB
ESP32S3 CAM LCD	ESP32S3	240MHz	8MB	320KB
ESP32vn IoT Uno	ESP32	240MHz	4MB	320KB
ESPectro32	ESP32	240MHz	4MB	320KB
ESPino32	ESP32	240MHz	4MB	320KB
EspinalLab ATMegaZero ESP32-S2	ESP32S2	240MHz	16MB	320KB
Espressif ESP32 Dev Module	ESP32	240MHz	4MB	320KB
Espressif ESP32-C3-DevKitC-02	ESP32C3	160MHz	4MB	320KB
Espressif ESP32-C3-DevKitM-1	ESP32C3	160MHz	4MB	320KB
Espressif ESP32-C6-DevKitM-1	ESP32C6	160MHz	4MB	320KB
Espressif ESP32-S2-Saola-1	ESP32S2	240MHz	4MB	320KB
Espressif ESP32-S3-Box	ESP32S3	240MHz	16MB	320KB
FireBeetle-ESP32	ESP32	240MHz	16MB	520KB
Franzininho WiFi	ESP32S2	240MHz	4MB	320KB
Franzininho WiFi Board	ESP32S2	240MHz	4MB	320KB
Franzininho WiFi MSC	ESP32S2	240MHz	4MB	320KB
Frog Board ESP32	ESP32	240MHz	4MB	320KB
HONEYLemon	ESP32	240MHz	4MB	320KB
Heltec WiFi Kit 32 (V3)	ESP32S3	240MHz	8MB	320KB
Heltec WiFi LoRa 32	ESP32	240MHz	4MB	320KB
Heltec WiFi LoRa 32 (V2)	ESP32	240MHz	8MB	320KB
Heltec WiFi LoRa 32 (V3)	ESP32S3	240MHz	8MB	320KB
Heltec Wireless Stick	ESP32	240MHz	8MB	320KB
Hornbill ESP32 Dev	ESP32	240MHz	4MB	320KB
Hornbill ESP32 Minima	ESP32	240MHz	4MB	320KB
IoTaaP Magnolia	ESP32	240MHz	4MB	320KB
Kinetic Dynamics Nebula S3	ESP32S3	240MHz	4MB	320KB
LOGISENSES Senses Weizen	ESP32	240MHz	4MB	320KB
Lilka v2	ESP32S3	240MHz	16MB	320KB
LilyGo T-Display-S3	ESP32S3	240MHz	16MB	320KB
Lion:Bit Dev Board	ESP32	240MHz	4MB	320KB
M5Stack AtomS3	ESP32S3	240MHz	8MB	320KB
M5Stack CoreS3	ESP32S3	240MHz	16MB	320KB
M5Stack StampS3	ESP32S3	240MHz	8MB	320KB
MH ET LIVE ESP32DevKIT	ESP32	240MHz	4MB	320KB
MH ET LIVE ESP32MiniKit	ESP32	240MHz	4MB	320KB
MakerAsia KB32-FT	ESP32	240MHz	4MB	320KB
MotorGo Mini 1 (ESP32-S3)	ESP32S3	240MHz	4MB	320KB
Munich Labs RedPill ESP32-S3	ESP32S3	240MHz	8MB	320KB
Namino Arancio	ESP32S3	240MHz	4MB	320KB
Namino Rosso	ESP32S3	240MHz	4MB	320KB
Node32s	ESP32	240MHz	4MB	320KB
NodeMCU-32S	ESP32	240MHz	4MB	320KB
OLIMEX ESP32-DevKit-LiPo	ESP32	240MHz	4MB	320KB
OLIMEX ESP32-EVB	ESP32	240MHz	4MB	320KB
OLIMEX ESP32-GATEWAY	ESP32	240MHz	4MB	320KB
Pycom LoPy	ESP32	240MHz	4MB	320KB
Pycom LoPy4	ESP32	240MHz	4MB	1.25MB
Pycom WiPy3	ESP32	240MHz	4MB	1.25MB
SG-O AirMon	ESP32	240MHz	4MB	320KB
SQFMI Watchy v2.0	ESP32	240MHz	4MB	320KB
Seeed Studio Edgebox-ESP-100	ESP32S3	240MHz	4MB	320KB
Seeed Studio XIAO ESP32C3	ESP32C3	160MHz	4MB	320KB
Seeed Studio XIAO ESP32S3	ESP32S3	240MHz	8MB	320KB
Silicognition wESP32	ESP32	240MHz	4MB	320KB
Smart Bee Data Logger	ESP32S3	240MHz	8MB	320KB
Smart Bee Motion	ESP32S2	240MHz	4MB	320KB
Smart Bee Motion Mini	ESP32C3	160MHz	4MB	320KB
Smart Bee Motion S3	ESP32S3	240MHz	8MB	320KB
Smart Bee S3	ESP32S3	240MHz	8MB	320KB
SparkFun ESP32 IoT RedBoard	ESP32	240MHz	4MB	320KB
SparkFun ESP32 Thing	ESP32	240MHz	4MB	320KB
SparkFun ESP32 Thing Plus	ESP32	240MHz	16MB	320KB
SparkFun ESP32 Thing Plus C	ESP32	240MHz	16MB	320KB
SparkFun ESP32-S2 Thing Plus	ESP32S2	240MHz	4MB	320KB
SparkFun LoRa Gateway 1-Channel	ESP32	240MHz	4MB	320KB
TAMC DPU ESP32	ESP32	240MHz	8MB	320KB
TAMC Termod S3	ESP32S3	240MHz	8MB	320KB
TTGO LoRa32-OLED V1	ESP32	240MHz	4MB	320KB
TTGO LoRa32-OLED V2	ESP32	240MHz	4MB	320KB
TTGO LoRa32-OLED v2.1.6	ESP32	240MHz	4MB	320KB
TTGO T-Beam	ESP32	240MHz	4MB	1.25MB
TTGO T-OI PLUS RISC-V ESP32-C3	ESP32C3	160MHz	4MB	320KB
TTGO T1	ESP32	240MHz	4MB	320KB
TTGO T7 V1.4 Mini32	ESP32	240MHz	4MB	1.25MB
Trueverit ESP32 Universal IoT Driver	ESP32	240MHz	4MB	320KB
Trueverit ESP32 Universal IoT Driver MK II	ESP32	240MHz	4MB	320KB
Trueverit ESP32 Universal IoT Driver MK III	ESP32	240MHz	4MB	320KB
Unexpected Maker FeatherS2	ESP32S2	240MHz	16MB	320KB
Unexpected Maker FeatherS2 Neo	ESP32S2	240MHz	4MB	320KB
Unexpected Maker FeatherS3	ESP32S3	240MHz	16MB	320KB
Unexpected Maker NanoS3	ESP32S3	240MHz	8MB	320KB
Unexpected Maker PROS3	ESP32S3	240MHz	16MB	320KB
Unexpected Maker RMP	ESP32S2	240MHz	4MB	320KB
Unexpected Maker TinyS2	ESP32S2	240MHz	4MB	320KB
Unexpected Maker TinyS3	ESP32S3	240MHz	8MB	320KB
Valetron Systems VALTRACK-V4MVF	ESP32C3	160MHz	4MB	320KB
Valetron Systems VALTRACK-V4VTS	ESP32C3	160MHz	4MB	320KB
VintLabs ESP32 Devkit	ESP32	240MHz	4MB	320KB
WEMOS D1 MINI ESP32	ESP32	240MHz	4MB	320KB
WEMOS D1 R32	ESP32	240MHz	4MB	320KB
WEMOS LOLIN C3 Mini	ESP32C3	160MHz	4MB	320KB
WEMOS LOLIN D32	ESP32	240MHz	4MB	320KB
WEMOS LOLIN D32 PRO	ESP32	240MHz	4MB	320KB
WEMOS LOLIN S2 Mini	ESP32S2	240MHz	4MB	320KB
WEMOS LOLIN S2 PICO	ESP32S2	240MHz	4MB	320KB
WEMOS LOLIN S3	ESP32S3	240MHz	16MB	320KB
WEMOS LOLIN S3 Mini	ESP32S3	240MHz	4MB	320KB
WEMOS LOLIN S3 PRO	ESP32S3	240MHz	16MB	320KB
WEMOS LOLIN32	ESP32	240MHz	4MB	320KB
WEMOS LOLIN32 Lite	ESP32	240MHz	4MB	320KB
WeAct Studio ESP32C3CoreBoard	ESP32C3	160MHz	384KB	400KB
WeMos WiFi and Bluetooth Battery	ESP32	240MHz	4MB	320KB
Wireless-Tag WT32-ETH01 Ethernet Module	ESP32	240MHz	4MB	320KB
XinaBox CW02	ESP32	240MHz	4MB	320KB
microS2	ESP32S2	240MHz	16MB	320KB
oddWires IoT-Bus Io	ESP32	240MHz	4MB	320KB
oddWires IoT-Bus Proteus	ESP32	240MHz	4MB	320KB
senseBox MCU-S2 ESP32-S2	ESP32S2	240MHz	4MB	320KB
uPesy ESP32 Wroom DevKit	ESP32	240MHz	4MB	320KB
uPesy ESP32 Wrover DevKit	ESP32	240MHz	4MB	320KB
unPhone 7	ESP32	240MHz	4MB	320KB
unPhone 8	ESP32S3	240MHz	7.94MB	2.31MB
unPhone 9	ESP32S3	240MHz	7.94MB	8.31MB

Stable and upstream versions

You can switch between stable releases of Espressif 32 development platform and the latest upstream version using platform option in “platformio.ini” (Project Configuration File) as described below.

Stable

; Latest stable version, NOT recommended
; Pin the version as shown below
[env:latest_stable]
platform = espressif32
board = ...

; Specific version
[env:custom_stable]
platform = espressif32@x.y.z
board = ...

Upstream

[env:upstream_develop]
platform = https://github.com/platformio/platform-espressif32.git
board = ...

Packages

Name	Description
framework-arduinoespressif32	Arduino Wiring-based Framework for the Espressif ESP32, ESP32-S and ESP32-C series of SoCs
framework-espidf	Espressif IoT Development Framework. Official development framework for ESP32 chip
tool-cmake	CMake is an open-source, cross-platform family of tools designed to build, test and package software.
tool-dfuutil-arduino	Device Firmware Upgrade Utilities
tool-esptoolpy	A Python-based, open-source, platform-independent utility to communicate with the ROM bootloader in Espressif chips
tool-idf	idf is a top-level config/build command line tool for ESP-IDF
tool-mconf	Fork of kconfig-frontends project with some modifications for use with ESP-IDF
tool-mkfatfs	Utility for creating FFat images
tool-mklittlefs	Utility for creating littlefs images for upload on the ESP8266
tool-mkspiffs	Tool to build and unpack SPIFFS images
tool-ninja	Ninja is a small build system with a focus on speed
tool-openocd-esp32	Open On-Chip Debugger for Espressif ESP32
tool-riscv32-esp-elf-gdb	GNU GDB for Espressif ESP32 Xtensa MCUs (RISC-V Core)
tool-xtensa-esp-elf-gdb	GNU GDB for Espressif ESP32 Xtensa MCUs (RISC-V Core)
toolchain-esp32ulp	Binutils fork with support for the Espressif ESP32 ULP co-processor
toolchain-riscv32-esp	GCC Toolchain for Espressif 32-bit RISC-V based MCUs
toolchain-xtensa-esp-elf	GCC Toolchain for Espressif ESP32 Xtensa MCUs
toolchain-xtensa-esp32	GCC Toolchain for Espressif ESP32 Xtensa MCUs
toolchain-xtensa-esp32s2	GCC Toolchain for Espressif ESP32-S2 Xtensa MCUs
toolchain-xtensa-esp32s3	GCC Toolchain for Espressif ESP32-S3 Xtensa MCUs

Warning

Linux Users:

• Install “udev” rules 99-platformio-udev.rules

• Raspberry Pi users, please read this article Enable serial port on Raspberry Pi.

Windows Users:

Please check that you have a correctly installed USB driver from board manufacturer

Frameworks

Name	Description
Arduino	Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.
Espressif IoT Development Framework	Espressif IoT Development Framework. Official development framework for ESP32 chip

Boards

Note

• You can list pre-configured boards by pio boards command

• For more detailed board information please scroll the tables below by horizontally.

4D Systems

Name	Debug	MCU	Frequency	Flash	RAM
4D Systems GEN4-ESP32 16MB (ESP32S3-R8N16)	External	ESP32S3	240MHz	16MB	320KB

AI Thinker

Name	Debug	MCU	Frequency	Flash	RAM
AI Thinker ESP32-CAM	External	ESP32	240MHz	4MB	320KB

AZ-Delivery

Name	Debug	MCU	Frequency	Flash	RAM
AZ-Delivery ESP-32 Dev Kit C V4	External	ESP32	240MHz	4MB	520KB

Adafruit

Name	Debug	MCU	Frequency	Flash	RAM
Adafruit ESP32 Feather	External	ESP32	240MHz	4MB	320KB
Adafruit ESP32-S2 Feather Development Board	External	ESP32S2	240MHz	4MB	320KB
Adafruit Feather ESP32 V2	External	ESP32	240MHz	8MB	320KB
Adafruit Feather ESP32-S2	External	ESP32S2	240MHz	4MB	320KB
Adafruit Feather ESP32-S2 Reverse TFT	External	ESP32S2	240MHz	4MB	320KB
Adafruit Feather ESP32-S2 TFT	External	ESP32S2	240MHz	4MB	320KB
Adafruit Feather ESP32-S3 2MB PSRAM	External	ESP32S3	240MHz	4MB	320KB
Adafruit Feather ESP32-S3 No PSRAM	External	ESP32S3	240MHz	8MB	320KB
Adafruit Feather ESP32-S3 Reverse TFT	External	ESP32S3	240MHz	4MB	320KB
Adafruit Feather ESP32-S3 TFT	External	ESP32S3	240MHz	4MB	320KB
Adafruit FunHouse	External	ESP32S2	240MHz	4MB	320KB
Adafruit ItsyBitsy ESP32	External	ESP32	240MHz	8MB	320KB
Adafruit MagTag 2.9	External	ESP32S2	240MHz	4MB	320KB
Adafruit MatrixPortal ESP32-S3	External	ESP32S3	240MHz	8MB	320KB
Adafruit Metro ESP32-S2	External	ESP32S2	240MHz	4MB	320KB
Adafruit Metro ESP32-S3	External	ESP32S3	240MHz	16MB	320KB
Adafruit QT Py ESP32	External	ESP32	240MHz	8MB	320KB
Adafruit QT Py ESP32-C3	External	ESP32C3	160MHz	4MB	320KB
Adafruit QT Py ESP32-S2	External	ESP32S2	240MHz	4MB	320KB
Adafruit QT Py ESP32-S3 (4M Flash 2M PSRAM)	External	ESP32S3	240MHz	4MB	320KB
Adafruit QT Py ESP32-S3 No PSRAM	External	ESP32S3	240MHz	8MB	320KB
Adafruit Qualia ESP32-S3 RGB666	External	ESP32S3	240MHz	16MB	320KB
Adafruit pyCamera S3	External	ESP32S3	240MHz	4MB	320KB

Ai-Thinker

Name	Debug	MCU	Frequency	Flash	RAM
Ai-Thinker ESP-C3-M1-I-Kit	External	ESP32C3	160MHz	4MB	320KB
Ai-Thinker NodeMCU-32S2 (ESP-12K)	External	ESP32S2	240MHz	4MB	320KB

AirM2M

Name	Debug	MCU	Frequency	Flash	RAM
AirM2M CORE ESP32C3	External	ESP32C3	160MHz	4MB	320KB

Aiyarafun

Name	Debug	MCU	Frequency	Flash	RAM
Node32s	External	ESP32	240MHz	4MB	320KB

Anderson & friends

Name	Debug	MCU	Frequency	Flash	RAM
Lilka v2	External	ESP32S3	240MHz	16MB	320KB

April Brother

Name	Debug	MCU	Frequency	Flash	RAM
April Brother ESPea32	No	ESP32	240MHz	4MB	320KB

Arduino

Name	Debug	MCU	Frequency	Flash	RAM
Arduino Nano ESP32	External	ESP32S3	240MHz	16MB	320KB

ArtronShop

Name	Debug	MCU	Frequency	Flash	RAM
ArtronShop ATD1.47-S3	External	ESP32S3	240MHz	8MB	320KB
ArtronShop IOXESP32	External	ESP32	240MHz	4MB	320KB
ArtronShop IOXESP32PS	External	ESP32	240MHz	4MB	320KB

Aventen

Name	Debug	MCU	Frequency	Flash	RAM
Aventen S3 Sync	External	ESP32S3	240MHz	16MB	320KB

BPI Tech

Name	Debug	MCU	Frequency	Flash	RAM
BPI-Bit	No	ESP32	160MHz	4MB	320KB
BPI-Leaf-S3	External	ESP32S3	240MHz	8MB	320KB

Blinker

Name	Debug	MCU	Frequency	Flash	RAM
Blinker WiFiduino32	No	ESP32	240MHz	4MB	320KB
Blinker WiFiduino32S3	External	ESP32S3	240MHz	8MB	320KB
Blinker WiFiduinoV2 (ESP32-C3)	External	ESP32C3	160MHz	4MB	320KB

CNRS

Name	Debug	MCU	Frequency	Flash	RAM
CNRS AW2ETH	No	ESP32	240MHz	4MB	320KB

Connaxio

Name	Debug	MCU	Frequency	Flash	RAM
Connaxio’s Espoir	External	ESP32	240MHz	4MB	320KB

Cytron Technologies

Name	Debug	MCU	Frequency	Flash	RAM
Cytron Maker Feather AIoT S3	External	ESP32S3	240MHz	8MB	320KB

DFRobot

Name	Debug	MCU	Frequency	Flash	RAM
DFRobot Beetle ESP32-C3	External	ESP32C3	160MHz	4MB	320KB
DFRobot Firebeetle 2 ESP32-E	External	ESP32	240MHz	4MB	320KB
DFRobot Firebeetle 2 ESP32-S3	External	ESP32S3	240MHz	4MB	320KB
DFRobot Romeo ESP32-S3	External	ESP32S3	240MHz	16MB	320KB
FireBeetle-ESP32	External	ESP32	240MHz	16MB	520KB

DOIT

Name	Debug	MCU	Frequency	Flash	RAM
DOIT ESP32 DEVKIT V1	External	ESP32	240MHz	4MB	320KB
DOIT ESPduino32	External	ESP32	240MHz	4MB	320KB

DSTIKE

Name	Debug	MCU	Frequency	Flash	RAM
D-duino-32	External	ESP32	240MHz	4MB	320KB

Denky

Name	Debug	MCU	Frequency	Flash	RAM
Denky D4 (PICO-V3-02)	No	ESP32	240MHz	8MB	320KB
Denky32 (WROOM32)	No	ESP32	240MHz	4MB	320KB

Deparment of Alchemy

Name	Debug	MCU	Frequency	Flash	RAM
Deparment of Alchemy MiniMain ESP32-S2	External	ESP32S2	240MHz	4MB	320KB

Dongsen Technology

Name	Debug	MCU	Frequency	Flash	RAM
Dongsen Tech Pocket 32	External	ESP32	240MHz	4MB	320KB

DycodeX

Name	Debug	MCU	Frequency	Flash	RAM
ESPectro32	External	ESP32	240MHz	4MB	320KB

ESP32vn

Name	Debug	MCU	Frequency	Flash	RAM
ESP32vn IoT Uno	External	ESP32	240MHz	4MB	320KB

ETBoard

Name	Debug	MCU	Frequency	Flash	RAM
ETBoard	No	ESP32	240MHz	4MB	320KB

Electronic SweetPeas

Name	Debug	MCU	Frequency	Flash	RAM
Electronic SweetPeas ESP320	No	ESP32	240MHz	4MB	320KB

EspinalLab

Name	Debug	MCU	Frequency	Flash	RAM
EspinalLab ATMegaZero ESP32-S2	External	ESP32S2	240MHz	16MB	320KB

Espressif

Name	Debug	MCU	Frequency	Flash	RAM
ESP32 Pico Kit	External	ESP32	240MHz	4MB	320KB
ESP32S3 CAM LCD	External	ESP32S3	240MHz	8MB	320KB
Espressif ESP-WROVER-KIT	On-board	ESP32	240MHz	4MB	320KB
Espressif ESP32 Dev Module	External	ESP32	240MHz	4MB	320KB
Espressif ESP32-C3-DevKitC-02	External	ESP32C3	160MHz	4MB	320KB
Espressif ESP32-C3-DevKitM-1	External	ESP32C3	160MHz	4MB	320KB
Espressif ESP32-C6-DevKitC-1	No	ESP32C6	160MHz	8MB	320KB
Espressif ESP32-C6-DevKitM-1	External	ESP32C6	160MHz	4MB	320KB
Espressif ESP32-S2-Kaluga-1 Kit	On-board	ESP32S2	240MHz	4MB	320KB
Espressif ESP32-S2-Saola-1	External	ESP32S2	240MHz	4MB	320KB
Espressif ESP32-S3-Box	External	ESP32S3	240MHz	16MB	320KB
Espressif ESP32-S3-DevKitC-1-N8 (8 MB QD, No PSRAM)	On-board	ESP32S3	240MHz	8MB	320KB
Espressif ESP32-S3-DevKitM-1	On-board	ESP32S3	240MHz	8MB	320KB
Espressif ESP32-S3-USB-OTG	On-board	ESP32S3	240MHz	8MB	320KB

Espressif Systems

Name	Debug	MCU	Frequency	Flash	RAM
Espressif ESP32-PICO-DevKitM-2	No	ESP32	240MHz	8MB	320KB

Fishino

Name	Debug	MCU	Frequency	Flash	RAM
Fishino Piranha ESP-32	No	ESP32	240MHz	4MB	320KB

Franzininho

Name	Debug	MCU	Frequency	Flash	RAM
Franzininho WiFi	External	ESP32S2	240MHz	4MB	320KB
Franzininho WiFi Board	External	ESP32S2	240MHz	4MB	320KB
Franzininho WiFi MSC	External	ESP32S2	240MHz	4MB	320KB

Fred

Name	Debug	MCU	Frequency	Flash	RAM
Frog Board ESP32	External	ESP32	240MHz	4MB	320KB

HONEYLemon

Name	Debug	MCU	Frequency	Flash	RAM
HONEYLemon	External	ESP32	240MHz	4MB	320KB

Hardkernel

Name	Debug	MCU	Frequency	Flash	RAM
ODROID-GO	No	ESP32	240MHz	16MB	320KB

Heltec

Name	Debug	MCU	Frequency	Flash	RAM
Heltec WiFi Kit 32 (V3)	External	ESP32S3	240MHz	8MB	320KB
Heltec WiFi LoRa 32 (V3)	External	ESP32S3	240MHz	8MB	320KB

Heltec Automation

Name	Debug	MCU	Frequency	Flash	RAM
Heltec WiFi Kit 32	No	ESP32	240MHz	4MB	320KB
Heltec WiFi Kit 32 (V2)	No	ESP32	240MHz	8MB	320KB
Heltec WiFi LoRa 32	External	ESP32	240MHz	4MB	320KB
Heltec WiFi LoRa 32 (V2)	External	ESP32	240MHz	8MB	320KB
Heltec Wireless Stick	External	ESP32	240MHz	8MB	320KB
Heltec Wireless Stick Lite	No	ESP32	240MHz	4MB	320KB

Hornbill

Name	Debug	MCU	Frequency	Flash	RAM
Hornbill ESP32 Dev	External	ESP32	240MHz	4MB	320KB
Hornbill ESP32 Minima	External	ESP32	240MHz	4MB	320KB

INEX

Name	Debug	MCU	Frequency	Flash	RAM
INEX OpenKB	No	ESP32	240MHz	4MB	320KB

Imbrios

Name	Debug	MCU	Frequency	Flash	RAM
Imbrios LogSens V1P1	No	ESP32	240MHz	4MB	320KB

IntoRobot

Name	Debug	MCU	Frequency	Flash	RAM
IntoRobot Fig	No	ESP32	240MHz	4MB	320KB

IoTaaP

Name	Debug	MCU	Frequency	Flash	RAM
IoTaaP Magnolia	External	ESP32	240MHz	4MB	320KB

KITS

Name	Debug	MCU	Frequency	Flash	RAM
KITS ESP32 EDU	No	ESP32	240MHz	4MB	320KB

Kinetic Dynamics

Name	Debug	MCU	Frequency	Flash	RAM
Kinetic Dynamics Nebula S3	External	ESP32S3	240MHz	4MB	320KB

LOGISENSES

Name	Debug	MCU	Frequency	Flash	RAM
LOGISENSES Senses Weizen	External	ESP32	240MHz	4MB	320KB

Labplus

Name	Debug	MCU	Frequency	Flash	RAM
Labplus mPython	No	ESP32	240MHz	4MB	320KB

LilyGo

Name	Debug	MCU	Frequency	Flash	RAM
LilyGo T-Display	No	ESP32	240MHz	4MB	320KB
LilyGo T-Display-S3	External	ESP32S3	240MHz	16MB	320KB

Lion:Bit

Name	Debug	MCU	Frequency	Flash	RAM
Lion:Bit Dev Board	External	ESP32	240MHz	4MB	320KB
Lion:Bit S3 STEM Dev Board	On-board	ESP32S3	240MHz	4MB	320KB

M5Stack

Name	Debug	MCU	Frequency	Flash	RAM
M5Stack AtomS3	External	ESP32S3	240MHz	8MB	320KB
M5Stack Core ESP32	No	ESP32	240MHz	4MB	320KB
M5Stack Core ESP32 16M	No	ESP32	240MHz	16MB	520KB
M5Stack Core2	No	ESP32	240MHz	16MB	4.31MB
M5Stack CoreS3	External	ESP32S3	240MHz	16MB	320KB
M5Stack FIRE	No	ESP32	240MHz	16MB	4.31MB
M5Stack GREY ESP32	No	ESP32	240MHz	16MB	520KB
M5Stack StampS3	External	ESP32S3	240MHz	8MB	320KB
M5Stack Station	No	ESP32	240MHz	16MB	4.31MB
M5Stack Timer CAM	No	ESP32	240MHz	4MB	320KB
M5Stack-ATOM	No	ESP32	240MHz	4MB	320KB
M5Stack-Core Ink	No	ESP32	240MHz	4MB	320KB
M5Stamp-Pico	No	ESP32	240MHz	4MB	320KB
M5Stick-C	No	ESP32	240MHz	4MB	320KB

MECT SRL

Name	Debug	MCU	Frequency	Flash	RAM
Namino Arancio	External	ESP32S3	240MHz	4MB	320KB
Namino Rosso	External	ESP32S3	240MHz	4MB	320KB

MGBOT

Name	Debug	MCU	Frequency	Flash	RAM
MGBOT IOTIK 32A	No	ESP32	240MHz	4MB	320KB
MGBOT IOTIK 32B	No	ESP32	240MHz	4MB	320KB

MH-ET Live

Name	Debug	MCU	Frequency	Flash	RAM
MH ET LIVE ESP32DevKIT	External	ESP32	240MHz	4MB	320KB
MH ET LIVE ESP32MiniKit	External	ESP32	240MHz	4MB	320KB

Magicblocks.io

Name	Debug	MCU	Frequency	Flash	RAM
MagicBit	No	ESP32	240MHz	4MB	320KB

MakerAsia

Name	Debug	MCU	Frequency	Flash	RAM
MakerAsia KB32-FT	External	ESP32	240MHz	4MB	320KB
MakerAsia Nano32	No	ESP32	240MHz	4MB	320KB

Microduino

Name	Debug	MCU	Frequency	Flash	RAM
Microduino Core ESP32	No	ESP32	240MHz	4MB	320KB

MotorGo

Name	Debug	MCU	Frequency	Flash	RAM
MotorGo Mini 1 (ESP32-S3)	External	ESP32S3	240MHz	4MB	320KB

Munich Labs

Name	Debug	MCU	Frequency	Flash	RAM
Munich Labs RedPill ESP32-S3	External	ESP32S3	240MHz	8MB	320KB

NodeMCU

Name	Debug	MCU	Frequency	Flash	RAM
NodeMCU-32S	External	ESP32	240MHz	4MB	320KB

Noduino

Name	Debug	MCU	Frequency	Flash	RAM
Noduino Quantum	No	ESP32	240MHz	16MB	320KB

OLIMEX

Name	Debug	MCU	Frequency	Flash	RAM
OLIMEX ESP32-DevKit-LiPo	External	ESP32	240MHz	4MB	320KB
OLIMEX ESP32-EVB	External	ESP32	240MHz	4MB	320KB
OLIMEX ESP32-GATEWAY	External	ESP32	240MHz	4MB	320KB
OLIMEX ESP32-PRO	No	ESP32	240MHz	4MB	320KB
OLIMEX ESP32-PoE	No	ESP32	240MHz	4MB	320KB
OLIMEX ESP32-PoE-ISO	No	ESP32	240MHz	4MB	320KB

OROCA

Name	Debug	MCU	Frequency	Flash	RAM
OROCA EduBot	No	ESP32	240MHz	4MB	320KB

Onehorse

Name	Debug	MCU	Frequency	Flash	RAM
Onehorse ESP32 Dev Module	No	ESP32	240MHz	4MB	320KB

PowerFeather

Name	Debug	MCU	Frequency	Flash	RAM
ESP32-S3 PowerFeather	External	ESP32S3	240MHz	8MB	320KB

ProtoCentral

Name	Debug	MCU	Frequency	Flash	RAM
ProtoCentral HealthyPi 4	No	ESP32	240MHz	4MB	320KB

Pycom Ltd.

Name	Debug	MCU	Frequency	Flash	RAM
Pycom GPy	No	ESP32	240MHz	4MB	320KB
Pycom LoPy	External	ESP32	240MHz	4MB	320KB
Pycom LoPy4	External	ESP32	240MHz	4MB	1.25MB
Pycom WiPy3	External	ESP32	240MHz	4MB	1.25MB

Qmobot LLP

Name	Debug	MCU	Frequency	Flash	RAM
Qchip	No	ESP32	240MHz	4MB	320KB

RoboHeart

Name	Debug	MCU	Frequency	Flash	RAM
RoboHeart Hercules	No	ESP32	240MHz	4MB	320KB

RoboticsBrno

Name	Debug	MCU	Frequency	Flash	RAM
ALKS ESP32	External	ESP32	240MHz	4MB	320KB

S.ODI

Name	Debug	MCU	Frequency	Flash	RAM
S.ODI Ultra v1	No	ESP32	240MHz	4MB	320KB

SG-O

Name	Debug	MCU	Frequency	Flash	RAM
SG-O AirMon	External	ESP32	240MHz	4MB	320KB

SQFMI

Name	Debug	MCU	Frequency	Flash	RAM
SQFMI Watchy v2.0	External	ESP32	240MHz	4MB	320KB

Seeed Studio

Name	Debug	MCU	Frequency	Flash	RAM
Seeed Studio Edgebox-ESP-100	External	ESP32S3	240MHz	4MB	320KB
Seeed Studio XIAO ESP32C3	External	ESP32C3	160MHz	4MB	320KB
Seeed Studio XIAO ESP32S3	External	ESP32S3	240MHz	8MB	320KB

Silicognition

Name	Debug	MCU	Frequency	Flash	RAM
Silicognition wESP32	External	ESP32	240MHz	4MB	320KB

Smart Bee

Name	Debug	MCU	Frequency	Flash	RAM
Smart Bee Data Logger	External	ESP32S3	240MHz	8MB	320KB
Smart Bee Motion	External	ESP32S2	240MHz	4MB	320KB
Smart Bee Motion Mini	External	ESP32C3	160MHz	4MB	320KB
Smart Bee Motion S3	External	ESP32S3	240MHz	8MB	320KB
Smart Bee S3	External	ESP32S3	240MHz	8MB	320KB

SparkFun

Name	Debug	MCU	Frequency	Flash	RAM
SparkFun ESP32 IoT RedBoard	External	ESP32	240MHz	4MB	320KB
SparkFun ESP32 MicroMod	No	ESP32	240MHz	4MB	320KB
SparkFun ESP32 Thing Plus C	External	ESP32	240MHz	16MB	320KB
SparkFun ESP32-S2 Thing Plus	External	ESP32S2	240MHz	4MB	320KB
SparkFun LoRa Gateway 1-Channel	External	ESP32	240MHz	4MB	320KB

SparkFun Electronics

Name	Debug	MCU	Frequency	Flash	RAM
SparkFun ESP32 Thing	External	ESP32	240MHz	4MB	320KB
SparkFun ESP32 Thing Plus	External	ESP32	240MHz	16MB	320KB

T3 Foundation

Name	Debug	MCU	Frequency	Flash	RAM
Deneyap Kart	External	ESP32	240MHz	4MB	320KB
Deneyap Kart 1A	External	ESP32	240MHz	4MB	320KB
Deneyap Kart 1A v2	External	ESP32S3	240MHz	4MB	320KB
Deneyap Kart G	External	ESP32C3	160MHz	4MB	320KB
Deneyap Mini	External	ESP32S2	240MHz	4MB	320KB
Deneyap Mini v2	External	ESP32S2	240MHz	4MB	320KB

TAMC

Name	Debug	MCU	Frequency	Flash	RAM
TAMC DPU ESP32	External	ESP32	240MHz	8MB	320KB
TAMC Termod S3	External	ESP32S3	240MHz	8MB	320KB

TTGO

Name	Debug	MCU	Frequency	Flash	RAM
TTGO LoRa32-OLED V1	External	ESP32	240MHz	4MB	320KB
TTGO LoRa32-OLED V2	External	ESP32	240MHz	4MB	320KB
TTGO LoRa32-OLED v2.1.6	External	ESP32	240MHz	4MB	320KB
TTGO T-Beam	External	ESP32	240MHz	4MB	1.25MB
TTGO T-OI PLUS RISC-V ESP32-C3	External	ESP32C3	160MHz	4MB	320KB
TTGO T-Watch	No	ESP32	240MHz	16MB	320KB
TTGO T1	External	ESP32	240MHz	4MB	320KB
TTGO T7 V1.3 Mini32	No	ESP32	240MHz	4MB	1.25MB
TTGO T7 V1.4 Mini32	External	ESP32	240MHz	4MB	1.25MB

ThaiEasyElec

Name	Debug	MCU	Frequency	Flash	RAM
ESPino32	External	ESP32	240MHz	4MB	320KB

Trueverit

Name	Debug	MCU	Frequency	Flash	RAM
Trueverit ESP32 Universal IoT Driver	External	ESP32	240MHz	4MB	320KB
Trueverit ESP32 Universal IoT Driver MK II	External	ESP32	240MHz	4MB	320KB
Trueverit ESP32 Universal IoT Driver MK III	External	ESP32	240MHz	4MB	320KB

Turta

Name	Debug	MCU	Frequency	Flash	RAM
Turta IoT Node	No	ESP32	240MHz	4MB	320KB

Unexpected Maker

Name	Debug	MCU	Frequency	Flash	RAM
Unexpected Maker FeatherS2	External	ESP32S2	240MHz	16MB	320KB
Unexpected Maker FeatherS2 Neo	External	ESP32S2	240MHz	4MB	320KB
Unexpected Maker FeatherS3	External	ESP32S3	240MHz	16MB	320KB
Unexpected Maker NanoS3	External	ESP32S3	240MHz	8MB	320KB
Unexpected Maker PROS3	External	ESP32S3	240MHz	16MB	320KB
Unexpected Maker RMP	External	ESP32S2	240MHz	4MB	320KB
Unexpected Maker TinyPICO	No	ESP32	240MHz	4MB	320KB
Unexpected Maker TinyS2	External	ESP32S2	240MHz	4MB	320KB
Unexpected Maker TinyS3	External	ESP32S3	240MHz	8MB	320KB

University of Sheffield

Name	Debug	MCU	Frequency	Flash	RAM
unPhone 7	External	ESP32	240MHz	4MB	320KB
unPhone 8	External	ESP32S3	240MHz	7.94MB	2.31MB
unPhone 9	External	ESP32S3	240MHz	7.94MB	8.31MB

Unknown

Name	Debug	MCU	Frequency	Flash	RAM
ESP32 FM DevKit	External	ESP32	240MHz	4MB	320KB

Valetron Systems

Name	Debug	MCU	Frequency	Flash	RAM
Valetron Systems VALTRACK-V4MVF	External	ESP32C3	160MHz	4MB	320KB
Valetron Systems VALTRACK-V4VTS	External	ESP32C3	160MHz	4MB	320KB

VintLabs

Name	Debug	MCU	Frequency	Flash	RAM
VintLabs ESP32 Devkit	External	ESP32	240MHz	4MB	320KB

WEMOS

Name	Debug	MCU	Frequency	Flash	RAM
WEMOS D1 MINI ESP32	External	ESP32	240MHz	4MB	320KB
WEMOS D1 R32	External	ESP32	240MHz	4MB	320KB
WEMOS LOLIN C3 Mini	External	ESP32C3	160MHz	4MB	320KB
WEMOS LOLIN D32	External	ESP32	240MHz	4MB	320KB
WEMOS LOLIN D32 PRO	External	ESP32	240MHz	4MB	320KB
WEMOS LOLIN S2 Mini	External	ESP32S2	240MHz	4MB	320KB
WEMOS LOLIN S2 PICO	External	ESP32S2	240MHz	4MB	320KB
WEMOS LOLIN S3	External	ESP32S3	240MHz	16MB	320KB
WEMOS LOLIN S3 Mini	External	ESP32S3	240MHz	4MB	320KB
WEMOS LOLIN S3 PRO	External	ESP32S3	240MHz	16MB	320KB
WEMOS LOLIN32	External	ESP32	240MHz	4MB	320KB
WEMOS LOLIN32 Lite	External	ESP32	240MHz	4MB	320KB
WeMos WiFi and Bluetooth Battery	External	ESP32	240MHz	4MB	320KB

WeAct Studio

Name	Debug	MCU	Frequency	Flash	RAM
WeAct Studio ESP32C3CoreBoard	External	ESP32C3	160MHz	384KB	400KB

Widora

Name	Debug	MCU	Frequency	Flash	RAM
Widora AIR	No	ESP32	240MHz	16MB	320KB

Wireless-Tag

Name	Debug	MCU	Frequency	Flash	RAM
Wireless-Tag WT32-ETH01 Ethernet Module	External	ESP32	240MHz	4MB	320KB

XinaBox

Name	Debug	MCU	Frequency	Flash	RAM
XinaBox CW02	External	ESP32	240MHz	4MB	320KB

YeaCreate

Name	Debug	MCU	Frequency	Flash	RAM
YeaCreate NSCREEN-32	No	ESP32	240MHz	16MB	320KB

microS2

Name	Debug	MCU	Frequency	Flash	RAM
microS2	External	ESP32S2	240MHz	16MB	320KB

oddWires

Name	Debug	MCU	Frequency	Flash	RAM
oddWires IoT-Bus Io	External	ESP32	240MHz	4MB	320KB
oddWires IoT-Bus Proteus	External	ESP32	240MHz	4MB	320KB

senseBox

Name	Debug	MCU	Frequency	Flash	RAM
senseBox MCU-S2 ESP32-S2	External	ESP32S2	240MHz	4MB	320KB

u-blox

Name	Debug	MCU	Frequency	Flash	RAM
u-blox NINA-W10 series	No	ESP32	240MHz	2MB	320KB

uPesy

Name	Debug	MCU	Frequency	Flash	RAM
uPesy ESP32 Wroom DevKit	External	ESP32	240MHz	4MB	320KB
uPesy ESP32 Wrover DevKit	External	ESP32	240MHz	4MB	320KB