The Internet of Things with ESP32

FEATURES & SPECIFICATIONS

See the ESP32 Datasheet for information on ESP32 chips and the ESP32-PICO-D4 Datasheet for information on the SiP module.

• Processors:
  • Main processor: Tensilica Xtensa 32-bit LX6 microprocessor
    • Cores: 2 or 1 (depending on variation)
      All chips in the ESP32 series are dual-core except for ESP32-S0WD, which is single-core.
    • Clock frequency: up to 240 MHz
    • Performance: up to 600 DMIPS
  • Ultra low power co-processor: allows you to do ADC conversions, computation, and level thresholds while in deep sleep.
• Wireless connectivity:
  • Wi-Fi: 802.11 b/g/n/e/i (802.11n @ 2.4 GHz up to 150 Mbit/s)
  • Bluetooth: v4.2 BR/EDR and Bluetooth Low Energy (BLE)
• Memory:
  • Internal memory:
    • ROM: 448 KiB
      For booting and core functions.
    • SRAM: 520 KiB
      For data and instruction.
    • RTC fast SRAM: 8 KiB
      For data storage and main CPU during RTC Boot from the deep-sleep mode.
    • RTC slow SRAM: 8 KiB
      For co-processor accessing during deep-sleep mode.
    • eFuse: 1 Kibit
      Of which 256 bits are used for the system (MAC address and chip configuration) and the remaining 768 bits are reserved for customer applications, including Flash-Encryption and Chip-ID.
    • Embedded flash:
      Flash connected internally via IO16, IO17, SD_CMD, SD_CLK, SD_DATA_0 and SD_DATA_1 on ESP32-D2WD and ESP32-PICO-D4.
      • 0 MiB (ESP32-D0WDQ6, ESP32-D0WD, and ESP32-S0WD chips)
      • 2 MiB (ESP32-D2WD chip)
      • 4 MiB (ESP32-PICO-D4 SiP module)
  • External flash & SRAM: ESP32 supports up to four 16 MiB external QSPI flashes and SRAMs with hardware encryption based on AES to protect developers’ programs and data. ESP32 can access the external QSPI flash and SRAM through high-speed caches.
    • Up to 16 MiB of external flash are memory-mapped onto the CPU code space, supporting 8-bit, 16-bit and 32-bit access. Code execution is supported.
    • Up to 8 MiB of external flash/SRAM memory are mapped onto the CPU data space, supporting 8-bit, 16-bit and 32-bit access. Data-read is supported on the flash and SRAM. Data-write is supported on the SRAM.
    ESP32 chips with embedded flash do not support the address mapping between external flash and peripherals.
• Peripheral input/output: Rich peripheral interface with DMA that includes capacitive touch, ADCs (analog-to-digital converter), DACs (digital-to-analog converter), I²C (Inter-Integrated Circuit), UART (universal asynchronous receiver/transmitter), CAN 2.0 (Controller Area Network), SPI (Serial Peripheral Interface), I²S (Integrated Inter-IC Sound), RMII (Reduced Media-Independent Interface), PWM (pulse width modulation), and more.
• Security:
  • IEEE 802.11 standard security features all supported, including WFA, WPA/WPA2 and WAPI
  • Secure boot
  • Flash encryption
  • 1024-bit OTP, up to 768-bit for customers
  • Cryptographic hardware acceleration: AES, SHA-2, RSA, elliptic curve cryptography (ECC), random number generator (RNG)

COMMUNITY & DISCUSSION

For most questions, it’s probably best to submit a post in the forums for widest community visibility and easily writing out the nitty-gritty details of your situational context — for example, including example code and detailing the relevant configuration of your software, firmware, and hardware. Alternatively, real-time chat via IRC is a great way to converse with others, learn new things, and sometimes get answers to questions on the spot. But, having said that, the main drawback to online chat is that not everyone is active or looking at the channel (chat room) at the same moment — people work at different hours and live in different parts of the world — so timing can be hit-or-miss. So, if you ask a question in the IRC channel, try to stick around, as it might take someone awhile to respond.

• Forum: ESP32.com (Official Espressif ESP32 Forums)
• Chat: #ESP32 on IRC.freenode.net
  In order to connect to the #ESP32 chat channel on the Freenode IRC network, you will need to use an IRC client program. For long term usage, it’s recommended to download a full fledged IRC client. However, for temporary usage, you can Freenode’s webchat client.
• Reddit: /r/esp32

READINGS & VIDEOS

• News
  • @ESP32net on Twitter
  • ESP32 tag on Hackaday.com
• Projects
  • ESP32 tag on Hackaday.io
  • ESP32 search on Hackster.io
  • ESP32 search on Instructables
• Readings & Documentation
  • Getting Started
    • ESP-IDF Programming Guide ⭐
      Generated from the docs directory in the ESP-IDF repository.
    • Kolban’s Book on ESP32 (PDF) ⭐
    • Fast & Furious Guide to Programming the Nano32
    • How to Get Started with the ESP32
      (Elliot Williams, Hackaday, 2016 Oct 4)
    • Get Started with ESP32
      (Rita Zhang, 2016 Sept 29)
    • Getting Started with ESP32 ESP-IDF
  • Official Espressif Resources
    • Espressif ESP32 Resources Page
    • Espressif Support Downloads
      Includes resources for the ESP32 SoC, ESP32-PICO-D4 SiP; ESP-WROOM-32, ESP32-WROOM-32D, ESP32-WROOM-32U, ESP32-WROVER, ESP32-WROVER-I, ESP32-SOLO-1 modules; ESP32-DevKitC, ESP-WROVER-KIT, ESP32-PICO-KIT development kits.
      • Documents
      • Overview
      • SDKs & Demos
      • Tools
      • AT
    • ESP32 Technical Reference Manual (PDF) ⭐
    • Silicon errata: ECO and Workarounds for Bugs in ESP32 (PDF)
    • ESP32 Hardware Design Guidelines (PDF)
    • ESP32 Bluetooth Networking User Guide (PDF)
      See also: EspBluFi Android App
  • Documentation on ESP32.com Forums
  • Ethernet on ESP32 using LAN8720
  • JTAG Debugging
    • JTAG Debugging (ESP-IDF Programming Guide)
    • GoJimmyPi’s JTAG Debugging for ESP32, VSCode JTAG Debugging of ESP32 Part 1 & Part 2
    • How to debug ESP32 with JTAG / OpenOCD / GDB using FTDI C232HM DDHSL-0
      • Diagram (Forum Post)
      • Notes
  • Watson IoT Platform
    • Connect an ESP32 to the Watson IoT Platform using the Arduino IDE
    • Experiments with Bluetooth and Watson
      Use an ESP32/Arduino to connect Bluetooth devices to the Watson IoT Platform.
      Source code: ESP32BleBeacon.ino, ESP32BleGateway.ino
  • Luca Dentella’s ESP32 Blog Posts
    

    Introduction Development environment: ESP-IDF Development environment: Eclipse Flash, bootloader, and FreeRTOS Wi-Fi scanner Connect to a Wi-Fi network Configuration menu TCP connection Basic I/O Random number generation LED candle I/O with interrupts Sending SMS with BulkSMS ESP-IDF v2; how to manage different versions Multicast DNS (mDNS) IFTTT Simple Network Time Protocol (SNTP)

    Access point Non-volatile storage Web server Mutual authentication SPIFFS I²C basics I²C HTU21D sensor example OLED display with U8G2 UART GPS MQTT and SSL Deep sleep HTTP server in SoftAP mode ESP32, WEMOS or not to WEMOS ESP32, the new WEMOS LoLin32 Lite 4zerobox industrial module ESP32lights

  • ESP32 Tutorials from TechTutorialsX
    • Arduino: hello world, uploading a program, Wi-Fi network connection, Wi-Fi getting started, Wi-Fi soft AP, MQTT publishing, MQTT subscribing, JSON parsing, JSON message creation, JSON message sending over MQTT, HTTP GET, HTTP POST, LED PWM fading, buzzer PWM, HTTP POST to bottle application, external interrupts, timer interrupts, aREST library, creating a class, auto keyword, MFRC522 RFID, WebSocket client, WebSocket server, WebSocket server over soft AP, WebSocket server receiving & parsing JSON, socket server, HTTPS GET request, async HTTP webserver, async HTTP server, async HTTP server serving a HTML from PROGMEM, HTTP server getting query parameters, HTTP server multiple instances, HTTP server serving HTML & JavaScript, HTTP server over SoftAP, HTTP server external & internal redirects, HTTP server route not found handling, software reset, SSD1306 OLED display, SSD1306 OLED redraw string, Base64 encoding, SSD1306 OLED drawing QR code, free heap, random number generation (RNG), pthreads library, basic authentication, HMAC SHA-256
    • Arduino & ESP-IDF: FreeRTOS functions, task creation, task argument variable passing, task priority, task execution core ID, task execution on specific core, dual-core execution speed-up, queues, queue insertion, queue messages waiting & empty spaces, task communication using queues, queue performance test
    • ESP-IDF: Wi-Fi soft AP
    • MicroPython: setup & flashing, JSON parsing, JSON encoding, Wi-Fi network connection, Wi-Fi automatic connection, script execution from computer, file writing, file reading, file upload to file system, script execution from file system, HTTP POST, SHA-256, uPyCraft IDE getting started, uPyCraft script execution, lists, lambda functions, map function with lists, filter function with lists, dictionaries, string split method, simple URL query string parser, thread creation, thread function argument passing, timer interrupts, external interrupts
    • MicroPython & Picoweb: web server, HTTP content-type, HTTP response code, obtaining HTTP request method, serving HTML, serving JSON, Picoweb app query parameters
    • Espruino JavaScript: getting started, Wi-Fi network scan, Wi-Fi connection, array map, SHA1 hash, number to string conversion, array every method, objects
    • Bluetooth: BTstack library, finding device with Python & BTStack, receiving data through RFCOMM, advertising SPP service with SDP
    • Other: serial communication with Python
  • Random Nerd Tutorials
    • Installing the ESP32 board in Arduino IDE for Windows and for Mac & Linux
    • Getting started with an ESP32 development module
    • Web server using Arduino IDE
    • ESP32 with DHT11/DHT22 temperature/humidity web server using Arduino IDE
  • IoT Bits ESP32 Articles
    • FreeRTOS event groups — quick reference notes
    • Interfacing an audio codec with ESP32 part 1 & part 2
    • Customizing ESP32 flash partitions table
    • Erase ESP32 flash completely
    • Ogg Vorbis on ESP32 — feasible?
    • Ultra low power design with ESP32
• Notable Videos
  • Engineers.SG
    • Programming the ESP32 (William Hooi, 2016 Oct 5, 16 min.)
    • ESP32 Development Update (Baoshi Zhu, 2017 May 3, 19.4 min.)
  • Linux.conf.au 2017 & Open Hardware Mini-Conference
    • Microcontroller Hardware & Software (Angus Gratton, 2017 Jan 17, 23 min.)
    • IoTuz Hardware Design, Manufacturing, Working with KiCad (Bob Powers, 2017 Jan 17, 40 min.)
    • IoTuz Software Design Challenges and ESP-IDF (Mark Wolfe, 2017 Jan 17, 28 min.)
    • MicroPython for ESP32 (Nick Moore, 2017 Jan 17, 28 min.)
    • Development Example Using IoTuz (Andy Gelme, 2017 Jan 17, 29 min.)
  • MicroPython for ESP32 (Nick Moore, PyCon Australia, 2017 Aug 4, 25 min.)
  • How to add Wi-Fi control to any project — ESP32 beginner’s guide (GreatScott, 2017 Oct 1, 11 min.)
  • Wi-Fi Range Testing with ESP32 & Webcam: 10 km Using Directional Antenna (Florian Euchner, 2017 Apr 8, 5¾ min.)
  • Small Fruit: Disembiggening (Miniaturizing) the Mac Plus (Jeroen Domburg, Hackaday Superconference, 2017 Nov 12, 31.4 min.) — see also: close-up video
  • Andreas Spiess’s ESP32 Videos
    103. ESP32 tutorial, Arduino IDE, tests, and comparison with ESP8266
    143. Huge mailbag with ESP32 boards, capacitive LED switches, power supplies, and more
    147. Introduction into ESP32 with first tests: PWM, servo, web, touch sensors — “ESP32: it’s not as difficult as you think”
    149. Deep Sleep, RTC Memory, “Secret” LoLin Pins
    150. Which ESP32 revision? Including “fake news”, fuses, and bit-logic
    152. Quickie: additional ESP32 serial channels in Arduino IDE
    159. Big ESP32 boards review and test
    161. Measuring weight using an ESP32, a strain gauge, and a HX711
    162. Build your own $50 connected Geiger counter
    167. KRACK Wi-Fi attack: how to protect our ESP8266 and ESP32?
    168. Dual Core on Arduino IDE including data passing and task synchronization
    170. Enhanced Nextion HMI tutorial including ESP32, ESP8266, and Arduino support
    171. Arduino guide to infrared (IR) communication
    172. ESP32 and ESP8266 point-to-point (ESP-Now) and comparison with LoRa
    173. BLE with Arduino IDE (part 1)
    174. BLE with Arduino IDE (part 2)
    176. BLE human presence detector (Arduino IDE)
    177. USB cable testing; esp. for power supply
    179. BLE current draw
    182. LoRa boards: what you need to know before you buy; incl. antenna knowledge
  • PCBReflux’s ESP32 Videos (Repository)
    

    ESP32 Arduino and ESP-IDF installation Worst solder adapter ever (but great music) Arduino tutorial: getting to blinky ESP-IDF: playing with BLE/Bluetooth BLE/Bluetooth Eddystone implementation BLE/Bluetooth iBeacon implementation Arduino ucglib port with ILI9341 TFT LCD APA102 RGB LED strip controlled by Arduino sketch MAX6675 IoT Wi-Fi temp. sensor & ThingSpeak DIY Wi-Fi emergency button with SSL Gmail Weather station with Si7021 and OLED DIY Wi-Fi connected radar intrusion detector Bluetooth client reading from nRF51822 server HTTPS secure web server & Wi-Fi GPIO remote control Adapter, breadboard, UART, USB and more Wi-Fi enabled beacon tracker (a.k.a. the sheep counter) MQTT secure HTTPS TLS/SSL WebSocket ThingSpeak publish Deep sleep API and wake up MQTT secure HTTPS TLS/SSL WebSocket CloudMQTT subscribe FreeRTOS inter-task communication: queues ESP32-AT: playing with ESP32 AT commands ESP32-AT: Arduino Nano connected ESP32 Current consumption IoT BLE MQTT gateway FreeRTOS inter-task communication: event groups “Atomic clock” using U-Blox GPS module External Hall effect switch and GPIO interrupts Internal Hall effect sensor Portable luxmeter with BH1750FVI Switching heavy loads with solid state relays (SSR) Playing sound / MQTT sound Smart LED prototype using AC solid state relays (SSR) RFID read & write with MFRC522 module Mosquitto + SSL/TLS, openHAB2, MQTT Dash Smart LED prototype 2, openHAB2, MQTT Dash Play MP3 with DFPlayer Mini

    Arduino/Eclipse crossover NeoPixel (WS2812B) library contest Bluetooth server tutorial & code walk IR remote (AX-1838HS) Touch sensor (300 LED NeoPixel skin detector) Arduino multitasking (WS2812 octo-tasking) Arduino multitasking (DRV8825 stepstick stepper motor driver) Arduino AP + web server + file upload 100 ways to buy an ESP32 board Eclipse Oxygen installation & configuration Temperature measurement Bluetooth logging multimeter with INA219 & SSD1306 On the bench (fake mailbag) Heart rate / ECG monitor with AD8232 Battery monitor PushBullet push notifications Latch circuit ESP32 IoT, VPS, MQTT, Cloud DataStore $2 prototype PCBs ESP32 timers & changing timer ESP32 Arduino speed comparison Playing with Blynk MOSFET tutorial ESP32 vs ESP8266 speed comparison MOSFET level shifter Camera demo using OV2640 Micro SD card (SDHC) GPI[O] ePaper ePaper u8g2 interface ULP & ADC KiCad ESP32-WROVER adapter ESP-NOW simplex & duplex Mains power with HLK-PM03 Arduino BLE robot buggy with L298

  • Kolban’s ESP32 Technical Tutorials (Repository)
    Note: the YouTube playlist is in reverse-chronological order.

    Development environment on Raspberry Pi (forum post) Integration with Eclipse Attaching GDB for debugging ESP32-Duktape installation ESP32-Duktape web server Analog to digital conversion Tasks and concurrent sockets Pulse width modulation BMP180 I²C temperature & pressure sensor Using a logic analyzer Using the core dump Light dependent resistor Working with time DS1307 real time clock via I²C Displays and the U8g2 library

    HMC5883L compass Ambient light levels MPU6050 accelerometer FreeRTOS stack space Charting sensor data PCF8574 GPIO extender Driving the MAX7219 Building a C++ application Community & chat: ESP32 IRC channel Integrating with LibCURL BLE and C++ BLE, C++ and notifications RC522 RFID BLE notifications BLE client

  • G6EJD’s ESP32 Videos
    

    ESP32 X1 board, 0.96″ OLED, DHT22 temperature/humidity sensor Weather station with ESP32 X1 OLED (code) ESP32 1.3″ OLED weather station using scrolling frames (code) ILI9341 TFT displays (code) ESP32 ILI9341 TFT and hardware SPI for ultra fast graphics Connecting SSD1331 color OLED (code) DS18B20 temperature sensor (water proof) (code) MH-ET LIVE ESP32 MiniKit (code) ESP-WROVER-KIT review and weather forecaster demo Weather forecaster using local sensors (code) Thingspeak upload and deep sleep (code) SSD1351 1.5″ color OLED Wi-Fi survey tool; interpreting RSSI and conducting a survey (code) Thinkspeak channel data reading (code) ePaper SPI displays ePaper weather station using serial (UART) communication (code) ESP32 ultra low power test results Time services (simple approach) More advanced time services (code) WEMOS LOLIN32 Lite (review and differences) WEMOS LOLIN32 (low power demands when powered by 3.3 V)

    Connect and get I²C devices working Connect SPI devices and get them working Bosch BME680 environmental sensor: air quality, temperature, pressure, and humidity (code) Arduino IDE pin mapping: determining, changing, or adding definitions ADC and some of its more advanced functions Adding a new board definition to the Arduino IDE Digital to analog converter (code) Novelty X-mas and new year count down timer (code) How to connect and get I²C devices working (code) Audio spectrum analyser using FFT (code) 8-octave audio spectrum display (code) Real time Morse decoder (code) General purpose web server (code) Data logging web server (code) Hardware serial ports Over-the-air (OTA) updating (code) Sensor server & clients for DHT, SHT, BMP085, BMP180, DS18B20, etc. (code) Hints and tips (code) File downloads via HTTP with web interface File uploads via HTTP with web interface (code) Download, upload, delete, stream and directory services

  • Adel Kassah’s TUNIOT ESP32 Programming Videos
    

    Blinking internal LED Internal temperature sensor Internal touch sensor DHT temperature/humidity sensor Push button Photo-resistor Servo The serial LCD I²C PWM Connecting to networks

    Access point Running a simple web server mDNS protocol Client server communication Control your ESP32 with an Android App (Tutorial numbering gap; no tutorial 16.) Get data with an Android App over Wi-Fi Send data to Adafruit MQTT server Get data from Adafruit MQTT server Send an email

  • Mongoose OS Videos
    See also: user guide tutorial videos playlist.

    Mongoose OS installation Working with files Configuring Wi-Fi Customize built-in web server Mongoose OS & AWS IoT

    Internet button with Google IoT Core Internet button with Amazon AWS IoT Control via AWS IoT MQTT (Uses ESP8266, but applies to ESP32 too.) AWS device shadows ESP32 flash encryption (blog post, documentation)

  • Simba Embedded Programming Platform Videos
    Brief demo videos; see YouTube description for links to source code and documentation. (Videos not using ESP32 have been omitted; see uploads playlist for all Simba & Pumbaa videos.)

    Pumbaa: blink on Nano32 Pumbaa: queue class unit testing on Nano32 Pumbaa: room temperature with DS18B20 on Nano32 Pumbaa: dual board CAN blink on Nano32 and Arduino Due Pumbaa: DAC ramp on Nano32 Pumbaa: emacs text editor on Nano32

    Simba: “hello, world” on Nano32 Simba: CAN client-server test suite on Nano32 & Arduino Due

• First Impressions with ESP32 Units
  • Ask An Engineer: ESP32-DevKitC & Future Adafruit ESP32 Boards
    (Adafruit, 2016 Sept 21) 55 minutes into the show, Limor Fried briefly discussed their sold-out Espressif ESP32-DevKitC boards and gave a sneak-peek at the future Adafruit Feather HUZZAH ESP32 & HUZZAH ESP32 boards.
  • Saturday chattin’ ESP32 is here…
    (Adafruit, 2015 Sept 17, 16.5 min.)
  • ESP32 Hands-On: Awesome Promise
    (Hackaday, 2015 Sept 15)
• Miscellaneous Discussions
  • ESP32 pSRAM Support
  • Assembler Language Reference Manual
  • esptool: ESP32 Reset To Bootloader Issues on Windows

DEVELOPMENT

Development software, tools, environments, languages, platforms, frameworks, libraries, code, and other resources:

• ESP-IDF (Espressif IoT Development Framework)
  • Repository
    Official development framework for ESP32.
    • ESP-IDF Releases
    • Toolchain Setup: Windows, Linux, macOS
    • Examples
    • Components
  • ESP-IDF Program Template
  • AT Application for ESP32 ESP-IDF
• Other Espressif Projects
  • OpenOCD (On-Chip Debugger) Branch with ESP32 JTAG Support
  • BinUtils Fork with Support for the ESP32 ULP Co-processor
  • ESP32 Bluetooth/BLE Stack Precompiled Binary Library
    (Included in ESP-IDF.)
  • ESP32 Wi-Fi Stack Precompiled Binary Libraries
    (Included in ESP-IDF.)
• Arduino (C++)
  • Arduino Core for the ESP32
• Simba Embedded Programming Platform
  See also: Pumbaa (MicroPython on Simba)
  • Repository
  • Latest Release
  • Official board support: Nano32, ESP32-DevKitC, Maple ESP32
• Zephyr Project
  A scalable real-time operating system (RTOS) supporting multiple hardware architectures, optimized for resource constrained devices, and built with security in mind.
  • Preliminary ESP32 port
  • Supported Xtensa boards
• Mongoose OS
  • Benefits & security
  • Quick start guide
  • Examples
    • Amazon AWS IoT
    • Internet button & Amazon AWS IoT
    • IoT door sensor app (video, code)
    • IoT smart pool pump app (code)
    • Secure remote device management
    • Ethernet support for ESP32
    • Bluetooth support for ESP32
• NuttX RTOS
  • ESP32 Support
• MicroPython
  • Official MicroPython
    • Download (binary firmware)
    • Repository
      In the micropython-esp32 repository, the esp32 branch is the default branch (and more active) rather than the master branch.
  • Pumbaa
    MicroPython on Simba.
    • Documentation
  • Pycom’s MicroPython
    A fork of MicroPython with the ESP32 port customized to run on Pycom’s IoT multi-network modules. Note: Pycom and Damien George join forces for the ESP32.
  • Boris Lovosevic’s MicroPython
    MicroPython for ESP32, with 4 MiB pSRAM support and ESP-IDF building system. See Boris’s forum post for more info.
• Hybrid C/Python
  • Zerynth
    “Zerynth Introduces Python on ESP32” (2017 Sept 30)
• Lua
  • LuaNode
  • Lua RTOS
    Programming with the Lua programming language directly or using a block-based programming language that translates blocks to Lua.
    • Boris Lovosevic’s Lua RTOS Fork
      Modules added for LED (WS2812) & TFT (ILI9341 & ST7735), and other modules modified.
    • Whitecat Ecosystem Blockly Based Web IDE
      Whitecat uses Lua RTOS at its core.
  • NodeMCU Firmware (ESP32 Development Branch)
    • NodeMCU ESP32/ESP-IDF Project (Progress Tracking)
    • RTOS-SDK, ESP32 and the Way Forward (Discussion)
      Historical: ESP31 RTOS Migration Status
• JavaScript
  • Duktape
    • Repository
    • Documentation
    • Binary Download & Installation (esp32-duktape-2017-01-20.tar.gz)
  • Espruino JavaScript
    • Repository
    • Documentation
    • Builds
    • Chat (Gitter)
  • Mongoose JS (mJS)
    • Repository
    • Documentation
    • Introduction: mJS — a new approach to embedded scripting
• mruby (Carson McDonald & Yamamoto Masaya)
  • mruby Application Template
  • mirb (Embeddable Interactive Ruby Shell)
  • I²C Library for ESP32 mruby
  • Notable project: RubyOnWheelchair
    Although an STM32 based board was ultimately used for the final form of the project for on-board Ethernet, an ESP32 board was used in the prototyping process.
• Forth
  • CForth
  • Discussion on ForthHub
• BASIC
  • TinyBasic (See also: BASIC in ESP32 textcast demonstration.)
• Other Code & Libraries
  • ESP32-OTA-HTTPS: Secure Over-The-Air Updates (Article)
  • Lightweight HTTP client for ESP32.
  • Example of using libcurl with ESP32 (Forum Post)
  • MQTT
    • ESP32 MQTT Library & Sample Project (Tuan PM)
      Component based on ESP-IDF for ESP32.
    • MQTT Component for ESP-IDF Projects (Joël Gähwiler)
      Based on the lwmqtt library.
  • LibWebSockets
    Lightweight C library built to use minimal CPU and memory resources, providing fast throughput in both directions as client or server.
    • LibWebSockets repository
    • LibWebSockets ESP32 factory application
    • LibWebSockets test demos running on ESP32 OTA app
  • ESP32 (ESP-IDF) Wi-Fi connect and resolve DNS
  • Template for Connecting to the AWS IoT Platform
  • Rudi’s Standalone HTTP Server
    (Forum Post 1, 2; Video 1, 2)
  • Pre-built ESP8266 & ESP32 Toolchains for NodeMCU Development & CI Use
  • Neil Kolban’s ESP32 Code Snippets
  • FeelFreeLinux’s ESP32 Repository
    • Controlling GPIO Over HTTP Server
      Uses lwIP http_server_netconn example.
    • ThingSpeak Example
  • Ring Log (Edmund Huber)
    An on-disk ring buffer for persistent, fixed-sized logs.
    • ESP-IDF Example Project
    • Library
    • Forum Post
  • Temperature/Humidity Sensors
    • Single DS18B20 on ESP-IDF
      DS18B20 is a 1-Wire digital thermometer.
    • Simple DHT11 library
      DHT11 is a simple temperature & humidity sensor.
    • BME280 humidity/temperature/pressure sensor
      • Adafruit BME280 Arduino library
      • BME280 driver
      • Reading values from a BME280 via ESP-IDF’s I²C master driver
      • ESP32 MicroPython BME280 MQTT sample
  • Cameras
    • Igrr’s ESP32-Cam-Demo (using OV7725)
      Should work with other OV7xxx series cameras. Also, PCBReflux used this codebase with an OV2640.
    • Bitluni’s OV7670 camera & TFT display
      • OV7670 with FIFO memory
        Video 1, Video 2, Code
      • OV7670 without FIFO memory
        Video, Code
  • LEDs
    • Digital RGB LED (WS2812/SK6812/NeoPixel/APA102/DotStar) Drivers
    • AniCharlieplex
      Animation using the IS31FL3731 breakout and a Charlieplex 9×16 LED matrix.
    • Firmware & app for WS2812 LED strip control via Bluetooth
  • Robotics
    • Mini WiFi/BLE 4WD robot platform (Code, Summary Info)
  • Gaming
    • ESP32-DOOM (Forum Post, Video)
    • 15 Puzzle
      15 puzzle sliding tile puzzle for use with a ILI9328 display.
    • Nintendo Game System Emulation
      • ESP32-NESEMU (Video, Hackaday Summary)
        A Nintendo Entertainment System emulator for the ESP32.
      • Tiniest Game Boy Hides in Your Pocket (Video)
      • WiFiBoy32
  • Wi-Fi
    • ESP32 802.11 Freedom Output
      Send arbitrary IEEE 802.11 frames. See also: ESP32 Wi-Fi Range Testing: 10 km Using Directional Antenna.
    • Sniffing
      • Wi-Fi Sniffer (Łukasz Podkalicki)
      • ArduinoPcap (Stefan Kremser)
        A library for creating and sending .pcap files for Wireshark and other programs. (Video)
    • BluFi
      Although this is Bluetooth, BluFi provides onboarding for Wi-Fi setup. See also: EspBluFi Android App and ESP32 Bluetooth Networking User Guide.
      • ESP-IDF BluFi Demo
      • ESP32-BluFi Component & ESP-IDF Demo (Mark Wolfe)
  • Bluetooth
    • BTstack Port for the Espressif ESP32 Platform
  • Audio
    • MP3 & AAC Decoder (Forum Post, Demo Video)
      Michael “MrBuddyCasino” Böckling’s port of Jeroen “Spritetm” Domburg’s ESP8266 MP3 decoder to the ESP32.
    • MP3 Decoder with OLED Display Support (Demo Video)
      Microwavemont (kodera2t)’s fork of MrBuddyCasino’s port with OLED display support. See also: n24bass’s fork
  • CAN Driver (Thomas Barth)
    See also: A CAN driver for the ESP32, Hackaday.io project, and forum thread.
  • Displays & Graphics
    • TFT Library for ILI9341 & ILI9488 (Forum Post)
    • 15 Puzzle on ESP32 & ILI9328
    • ePaper Library for ESP32
      Note: adjusting SPI clock in ePaper.c
    • Waveshare 4.3 inch e-Paper UART (Arduino Code)
      Video; vendor’s wiki page.
    • PCD8544 library modified for interfacing ESP32 to Nokia 5110 LCD
  • DAC-Cosine (Krzysztof)
    API to operate cosine waveform generator inside ESP32.
  • ESP32_BadAppleBad: SSD1306 OLED & RLE video data (Lutz Lisseck)
    Bad Apple video by Touhou on ESP32 with SSD1306 OLED; uses the Heatshrink compression library to decompress the RLE encoded video data.
  • Audio Spectrum Visualization
    • 8-octave for SH1106 OLED (G6EJD; video)
    • 8-octave for ILI9341 (Tobozo)
• Development Tools and Environments
  • PlatformIO
    PlatformIO Espressif 32 platform package, documentation, and repository.
  • Zerynth Studio
    Zerynth’s middleware for IoT devices platform supports ESP32. Supported boards include ESP32-DevKitC, SparkFun ESP32 Thing, Olimex ESP32-EVB, and Olimex ESP32 Gateway.
  • Pymakr
    Pycom IDE for MicroPython on Pycom boards.
  • TUNIOT for ESP32 Web IDE
    TUNIOT is a visual programming environment that generates Arduino code.
  • Neil Kolban’s Development Tools for ESP32 on Raspberry Pi
    (Forum Post, Video)
  • DevC++ IDE with ESP32 ESP-IDF Support
    (Setup Notes)
  • QEMU
    • QEMU ESP32
    • QEMU Xtensa
      N.b., xtensa-esp32 branch; also see qemu-xtensa-esp32 fork used for testing, and the the pinned repositories of Max Filippov.
  • Whitecat Ecosystem Blockly Based Web IDE
  • Visuino Graphical Development for Arduino
    Commercial IDE with various pricing options.
• PCB Design Resources
  • KiCad
    • ESP32 KiCad Footprints (Adam Vadala-Roth)
    • KiCad Libraries (Baoshi Zhu)
    • KiCad ESP32 Schematic Symbol (Nava Whiteford)
    • WEMOS LoLin32 KiCad Library/Footprint (Eric Renfro)
    • ESP32 KiCad (Morgan Allen)
  • EAGLE
    • EAGLE Library (Macro Yau)
  • Altium Designer
    • Library for ESP-32S & ESP-WROOM-32 (Evert Dekker)
  • Hardware Reference Design
    • ESP32 Hardware Design Guidelines (PDF)
    • ESP-WROOM-32 Reference Design V1.0 (ZIP)
      ESP-WROOM-32 module reference design resources, including schematics, PCB layout, Gerber files, and BOM list. Intended for developers who purchase Espressif’s official mass-produced ESP-WROOM-32 modules.
    • ESP-WROOM-32 Reference Design V1.1 (ZIP)
      Previously called “ESP32 Module Reference Design V1.1”; ESP32 module reference design resources, including schematics, PCB layout, Gerber files, and BOM list.
    • ESP32-WROVER Reference Design (ZIP)
    • ESP32-DevKitC Reference Design (ZIP)
      Replaces “ESP32 Development Board Reference Design”.

HARDWARE

Hardware listed below includes the Quad-Flat No-Leads (QFN) packaged ESP32 chips and system-in-package module, various surface-mount printed circuit board modules, a large variety of development boards, and industrial, commercial, and general consumer devices.

QFN Packaged Chips

The ESP32 SoC (system on a chip) is housed in surface-mount, Quad-Flat No-leads (QFN) packages in either 6×6 mm² or 5×5 mm² sizes with 48+1 connection pads (48 pads along the sides and one large thermal pad connected to ground on the bottom). Physical package footprint/dimensions can be found in chapter 6 of the ESP32 Datasheet. All ESP32 chips thus far have been manufactured using TSMC’s ultra-low power 40 nm process.

IDENTIFIER	PROCESSOR CORES	EMBEDDED FLASH MEM.	PACKAGE SIZE	NOTES
ESP32-D0WDQ6				ESP32-D0WDQ6 is the initial production release (non-beta) chip of the ESP32 series. Datasheet Chip pinout poster Die photos Launch/release date: 2016 Sept 6 Known manufacture dates: SILICON REV. WAFER LOT NUMBER YEAR WEEK 0 P6W255 2016 32nd 35th 39th 50th PC3W29 2017 1st 1 PCKA36 2017 6th 11th 12th PCKA37 2017 17th TUBOPFKN79 2017 25th 28th
ESP32-D0WD				ESP32-D0WD has a smaller physical package, but otherwise functionally the same as ESP32-D0WDQ6. Datasheet Known manufacture dates: SILICON REV. WAFER LOT NUMBER YEAR WEEK 0 PC3W29 2017 10th
ESP32-D2WD				ESP32-D2WD is a variation with 2 MiB (16 Mibit) of embedded flash. GPIO16, GPIO17, SD_CMD, SD_CLK, SD_DATA_0 and SD_DATA_1 are used for internally connecting the embedded flash, and are not recommended for other uses. ⚠️ Datasheet Known manufacture dates: SILICON REV. WAFER LOT NUMBER YEAR WEEK 1 PP3376 2017 13th TUBIPP6198 2017 27th
ESP32-S0WD				ESP32-S0WD is a variation with a single-core (instead of dual-core) processor. Datasheet Photo: Size comparison to €1 coin Known manufacture dates: SILICON REV. WAFER LOT NUMBER YEAR WEEK 0 P6W255 2016 47th

QFN Packaged Module

ESP32-PICO-D4 SiP (system in package) module is housed in a 7×7 mm² Quad-Flat No-leads (QFN) package with 48+1 connection pads (48 pads along the sides and one large thermal pad connected to ground on the bottom). Package footprint/dimensions can be found in the ESP32-PICO-D4 Datasheet.

IDENTIFIER	PROCESSOR CORES	EMBEDDED FLASH MEM.	PACKAGE SIZE	NOTES
ESP32-PICO-D4				SiP module combines ESP32 silicon, crystal oscillator, flash memory, filter capacitors, and RF matching links into a single package. Datasheet Photos: Size comparison to €1 coin Internals photo Known manufacture dates: LOT NUMBER YEAR WEEK TJAGAPOP95 2017 28th Pins GPIO16, GPIO17, SD_CMD, SD_CLK, SD_DATA_0 and SD_DATA_1 are used for connecting the embedded flash, and are not recommended for other uses. ⚠️ Announced on 2017 Sept 1, although its existence was publicly known before.

ESP32-PICO-D4 has been included on the following boards:

• Espressif: ESP32-ZERO V2 (surface-mount PCB module), ESP32-PICO Core Board V2, ESP32-PICO-KIT (ESP32-PICO Core Board) V3 & V4
• Microwavemont: ESP32-PICO Motherboard, ESP32-PICO-ADB, ESP32-PICO Double Decker, ESP32-PICO-CAM, ESP32-PICO-tinyCAM

Compact Surface-Mount PCB Modules

The ESP32-based Wi-Fi/Bluetooth communication modules in the table below are surface-mount devices (SMD). Each module is a small printed circuit board upon which chips and other components are soldered and treated as an inseparable assembly to be integrated onto another PCB. All the modules listed below contain an ESP32 chip, a 40 MHz crystal (clock), and a flash memory chip, but vary in features such as antenna configuration, capacity of the flash memory chip, and EM shielding. Because these wireless communication module boards are designed for incorporation into final products (unlike development boards), they lack development components which are unnecessary or undesirable in final products — e.g., typically no USB-to-UART nor programming/reset buttons — minimizing both cost and physical size.

Note that the pSRAM column refers to inclusion of additional on-board pseudostatic RAM; this figure does not include the SRAM within the ESP32 chip itself.

MAKER	MODEL	FLASH MEMORY	PSRAM	ANTENNA	EM SHIELD	NOTES
Espressif 📌	ESP-WROOM-32	GD25Q32CSIG	0 MiB			Initial production release (non-beta) module board created by Espressif. Size: 25.5 mm × 18 mm × 3.1 mm Datasheet Pinout poster Schematic Hardware reference design (ZIP) Regulatory certificates: FCC ID: 2AC7Z-ESPWROOM32 CE notified body: Bay Area Compliance Laboratories Corp. (1313) MIC/TELEC cert. number: 211-161007 ISED cert. number: 21098-ESPWROOM32 KCC cert. number: MSIP-CRM-es5-ESP-WROOM-32 SRRC CMIIT ID: 2016DP7751 NCC ID: CCAH16LP3210T7 A special variation of the ESP-WROOM-32 module with 16 MiB flash is used with the SHA2017 Badge.
	ESP32-WROOM-32D previously ESP-WROOM-32D		0 MiB			Revision of the ESP-WROOM-32 module which uses an ESP32-D0WD chip instead of an ESP32-D0WDQ6 chip. Size: 25.5 mm × 18 mm × 3.1 mm Datasheet
	ESP32-WROOM-32U		0 MiB			Compatible with the electrical connection footprint of the Espressif ESP-WROOM-32 module. However, unlike the ESP-WROOM-32 and ESP32-WROOM-32D, ESP32-WROOM-32U includes a U.FL compatible connector in lieu meandered inverted-F antenna PCB trace, and the physical size of the module differs (smaller PCB area but slightly thicker module depth). Size: 19.2 mm × 18 mm × 3.2 mm Datasheet If the model name seems rather odd to you, you’re not alone.
	ESP32-SOLO-1	?	?	?	?	Upcoming module which will use the single core ESP32-S0WD chip. Processor frequency simply listed at 160 MHz, which differs from the dual core modules’ adjustable clock frequency range of 80 MHz to 240 MHz.
	ESP32-WROVER	IS25WP032	4 MiB			ESP32 based surface-mount PCB module with 4 MiB pSRAM. ESP32-WROVER is configured to use the MIFA PCB antenna. (Does not include a U.FL connector.) Size: 31.4 mm × 18 mm × 3.5 mm Datasheet User guide Pinout Footprint differs from ESP-WROOM-32 in the placement of pads 15–24. Espressif ESP-WROVER-KIT, Espressif ESP32-LyraT, and Baoshi’s JESP32 Nano boards have solder pads that accept the ESP32-WROVER footprint. Hardware reference design (ZIP) Schematic, layout, Gerbers, and BOM. Regulatory certificates: FCC ID: 2AC7Z-ESP32WROVER CE notified body: Bay Area Compliance Laboratories Corp. (1313) SRRC CMIIT ID: 2017DP3657
	ESP32-WROVER-I	IS25WP032	4 MiB	(MIFA disabled)		Variation of ESP32-WROVER module which includes an I-PEX/U.FL connector and is configured to use it (R15 connection). Size: 31.4 mm × 18 mm × 3.5 mm Datasheet User guide Hardware reference design (ZIP) Schematic, layout, Gerbers, and BOM. Regulatory certificates: FCC ID: 2AC7Z-ESP32WROVER CE notified body: Bay Area Compliance Laboratories Corp. (1313) SRRC CMIIT ID: 2017DP3657
	ESP32-ZERO	from SiP module	0 MiB	PRO-OB-440		Availability: Unreleased ESP32-ZERO V2 is a compact surface-mount PCB module which incorporates an ESP32-PICO series system-in-package (SiP) QFN module with a 3D antenna. Older version: SIP 3D ANT V3 Existing photos do not exhibit a shield, however, the board is designed to include an on-board EM shield.
Ai-Thinker	ESP-32S	W25Q32FVSIG	0 MiB			Description: ESP-32S was a remake/clone of Espressif’s ESP-WROOM-32 module. Size: 25.5 mm × 18 mm × 2.8 mm FCC ID: 2AHMR-ESP32S Ai-Thinker wiki ESP32 article Availability: ESP-32S appears to be discontinued, although some sellers still appear to have modules available in their inventory. Successor/replacement: In lieu of ESP-32S, Ai-Thinker presently sells Espressif ESP-WROOM-32 modules manufactured by Ai-Thinker. Ai-Thinker is an officially licensed manufacturer of Espressif ESP-WROOM-32 modules. Note that because such ESP-WROOM-32 modules are officially licensed through Espressif, they are classified in this table to be Espressif modules even though they are manufactured by Ai-Thinker.
AnalogLamb	ESP-32S-ALB		0 MiB			Clone of the ESP-32S module. Footprint: Compatible with ESP-WROOM-32 & ESP-32S. Module PCB has green color solder mask coating. Lacks EM shield and is not FCC certified. Availability: Released and in stock.
	ALB-WROOM		0 MiB			Variation of ESP-32S-ALB module with 16 MiB of flash.
	ALB32-WROVER	4 MiB and 16 MiB variations planned	4 MiB			Footprint same as ESP-WROOM-32. pSRAM: 4 MiB Size: 18 mm × 25 mm × 3 mm Note: Not FCC tested. Announcement Availability: To be released 2017 August 8.
DFRobot	ESP-WROOM-32		0 MiB			Clone/remake of Espressif ESP-WROOM-32 module. Uses non-typical frequency; note ESP-IDF crystal frequency setting. ⚠️ The schematic posted for the DFRobot ESP-WROOM-32 module is incorrect; the DFRobot ESP-WROOM-32 module does not use a 40 MHz crystal oscillator. They just copied over Espressif’s ESP-WROOM-32 schematic without updating it to reflect the change. Wiki article Photo by Hugatry Note: Unlike the official Espressif ESP-WROOM-32, this clone by DFRobot is not presently FCC certified. DFRobot SKU: TEL0111
eBox & Widora	ESP32-Bit		0 MiB			Antenna: on-board ceramic antenna and connector for an external antenna. Footprint: Unique and differs from all other manufactured modules. Pinout Availability: Released & purchasable (Although rather pricy.)
Freematics	ESP32 Module	(also 16 MiB in future variation)	0 MiB			Clone/remake of Espressif ESP-WROOM-32 module. Seen on Freematics ESPRIT development board. Does not appear to be sold separately.
Guoyun Technology 果云科技; a.k.a. Goouuu Tech	ESP-32F	(speculative)	0 MiB			Clone/remake of Espressif ESP-WROOM-32 module. FCC ID: 2AM77-ESP-32F Size: 18 mm × 25.5 mm × 2.8 mm Not to be confused with Guoyun Technology’s breakout board labeled “ESP32F” (without the hyphen).
IntoRobot	W32		0 MiB			Custom ESP32 based module. Footprint: Custom footprint differs from ESP-WROOM-32. Datasheet Documentation Seller: IntoRobot on Taobao
	W33		0 MiB			ESP32 based module with on-board ceramic antenna and U.FL connector for external antenna. Footprint: Custom footprint differs from ESP-WROOM-32. Datasheet Documentation Seller: IntoRobot on Taobao
ITEAD	PSH-C32 IM160913001	PN25F08	0 MiB			Wiki article Schematic Compared to other modules, 1 MiB is an unusually small flash memory capacity. ⚠️ Footprint: Unique and differs from all other manufactured modules. EM shield: None. (But has solder pads for a shield.) History: 2017 Feb 15: Initial wiki page 2017 Feb 22: Twitter announcement Availability: Released & purchasable
LIFX Lifi Labs	LCM3T	?	?			ESP32 based compact surface-mount PCB module with PCB trace meandered inverted-F antenna. Intended to be used in devices produced by Lifi Labs. Used in the LIFX Mini (a Wi-Fi enabled light) as seen in the “Internal Photos” exhibit attachment for FCC ID 2AA53-MINI. FCC ID: 2AA53-LCM3
	LCM3C	?	?			ESP32 based compact surface-mount PCB module with U.FL antenna connector. Intended to be used in devices produced by Lifi Labs. FCC ID: 2AA53-LCM3
Pycom	W01		4 MiB			OEM module version of the WiPy 2.0. Supports Wi-Fi and Bluetooth. Documentation (pinout, datasheet, drawings) FCC ID: 2AJMTWIPY01R See also: OEM Reference Board for Pycom modules.
	L01		4 MiB			OEM module version of the LoPy. Supports Wi-Fi, Bluetooth, and LoRa. Documentation (pinout, datasheet, drawings) FCC ID: 2AJMTLOPY01R See also: OEM Reference Board for Pycom modules.
	L04		4 MiB			OEM module version of the LoPy4. Supports Wi-Fi, Bluetooth, LoRa, and Sigfox. pSRAM: 4 MiB Documentation (pinout, datasheet, drawings) See also: OEM Reference Board for Pycom modules.
	G01		4 MiB			OEM module version of the GPy. Supports Cellular LTE-CAT M1/NB1, Wi-Fi and Bluetooth. Documentation (pinout, datasheet, drawings) See also: OEM Reference Board for Pycom modules.
SKYLAB	WG215	?	0 MiB			Product page Size: 25.5 mm × 18 mm × 3.0 mm History: 2017 May 8: Announcement 2017 June 23–25: Shown at 6th Shenzhen International Intelligent Transportation Exhibition Seller: SKYLAB on AliExpress (also available with development kit)
U-Blox	NINA-W131		0 MiB			Part of the U-Blox NINA-W13 series (previously NINA-W1 series) of Wi-Fi modules. NINA-W131 has connection pad for an external antenna.
	NINA-W132		0 MiB			Part of the U-BloxNINA-W13 series (previously NINA-W1 series) of Wi-Fi modules. NINA-W132 has an on-board “3D antenna” of shaped metal.
United Technologies	WB_MODE_V1	25Q32A	0 MiB			Appears to be a clone of the ESP-32S module. Seen soldered onto GHX_BOARD_V1 development board. Does not appear to be sold separately. EM shield: None. (But has solder pads for a shield.)

Small & Medium Development Boards/Modules (Not Using PCB Module)

These small and medium sized development boards have USB-to-UART interfaces, but the ESP32 chip is directly incorporated into the board (instead of using a ESP32-based surface-mount module).

MAKER	MODEL	FLASH MEMORY	ANTENNA	EM SHIELD	USB⇔UART	NOTES
Espressif 📌	ESP32-PICO-KIT V4	from SiP module	PRO-OB-440		SiLabs CP2102	ESP32-PICO-KIT V4 is a development board based around the ESP32-PICO-D4 SiP QFN module with a relatively slim form factor and single-row headers on opposing edges, lending to breadboard friendliness. The board includes a Proant “3D antenna”, Micro-USB socket, SiLabs CP2102 USB-to-UART bridge, “EN” and “BOOT” buttons, 3.3 V AMS1117 LDO (power supply), and a 5 V power indicator LED. The most notable difference from V3 to V4 is the pinout arrangement. FCC ID: 2AC7Z-ESP32PICOKIT Schematic Pinout N.b., V4 pinout differs from V3 pinout. ⚠️ Getting started guide
Electronic Sweet Peas	ESP320	(tentative)			SiLabs CP2104	Very small development board. Similar to the Electronic Sweet Peas ESP210 board. Part of the Node.IT family concept. Availability: Unreleased; under development
Gravitech & MakerAsia	Nano32	or			FTDI FT231XQ	Released; available for order from Gravitech US and Gravitech Thai. Programming guide From Gravitech (creator of Arduino Nano) and MakerAsia (creator of ESPresso Lite).
Heltec Automation	WIFI Kit 32	?			SiLabs CP2102	ESP32 development board with OLED display and battery connector. Pinout Repository (for all Heltec WIFI kits) Availability: purchasable through AliExpress. (Note: search query results include LoRa boards too.)
	WIFI LoRa 32	?	U.FL for LoRa		SiLabs CP2102	ESP32 development board with 0.96 inch OLED display, battery connector, and LoRa (SX1278). Antennas: ESP32 Wi-Fi & Bluetooth uses the MIFA PCB trace and SX1278 LoRa uses an external antenna via the U.FL connector. Pinout from top & from bottom Repository (for all Heltec WIFI kits) Availability: purchasable through AliExpress.
Microwavemont	ESP32-PICO Motherboard	from SiP module			SiLabs CP2102N (previously used CP2102)	Development board that uses the ESP32-PICO-D4 SiP, has a Micro-USB connector, LiPo battery connector and charger circuit, USB to UART bridge, and LED for blink test. USB bus power operation and Lipo battery operation are selectable by on-board jumper. Hackaday.io project Video History: 2017 Sept 13: Video & project page posted 2017 Sept 14: Submitted & posted to Tindie
	ESP32-PICO-ADB	from SiP module			SiLabs CP2102	Development board with ESP32-PICO-D4 SiP; intended for audio applications (e.g., web radio). History: 2017 Sept 11: Video and early photo 2017 Sept 15: Photos 2017 Sept 16: More photos 2017 Sept 17: Submitted to Tindie 2017 Sept 18: Available on Tindie
	ESP32-PICO Double Decker	from SiP module			SiLabs CP2102N	Stackable development board pair with stackable design and small size facilitate breadboard use. “Upper layer” main development board contains ESP32-PICO-D4 SiP, battery connector & charger circuit with LiPo charge status LEDs, Reset & pull-up IO0 buttons, and a green LED on GPIO4. “Lower layer” board has the USB connector and functions as a USB to UART bridge. Size: 17 mm × 50 mm Versions: original, MK2 History: 2017 Sept 17: Video 2017 Sept 18: Photos 2017 Sept 20: Available on Tindie 2017 Sept 28: Mark II (MK2) video, pinout diagram, and submitted to Tindie
	ESP32-PICO-CAM	from SiP module			SiLabs CP2102N	ESP32-PICO-D4 based development board with CMOS camera (OV7725 or OV2640) and 64×32 pixel OLED display (SSD1306). Repository (sample program) Videos: 2017 Oct 3rd & 8th
	ESP32-PICO-tinyCAM	from SiP module			SiLabs CP2102	Tiny Motion JPEG (MJPEG) video streamer with ESP32-PICO-D4, OV2640 2MP CMOS camera, 64×32 pixel SSD1306 OLED, and LiPo charger circuit. Streaming video can be watched through remote device, such as a PC or smartphone. Video streaming has been tested using IP Camera Lite for iOS and IP Camera Viewer 2 for macOS. Designed as a pair of “double-decker” boards. The primary “upper-deck” board contains the ESP32-PICO-D4, camera, and display. The secondary “lower-deck” board contains the USB-to-serial bridge. Once programming is done, the lower-deck board can be removed. Sample code History: 2017 Oct 18: Video 2017 Oct 23: Submitted and posted to Tindie
Pesky Products Kris “onehorse” Winer	ESP32 Development Board	N25Q032A			FTDI FT230XQ	Other notable components: MAX1555 LiPo battery charger, 3.3 V MIC5528 LDO supplying 500 mA Gerber files available on OSH Park Antenna connection: Plated through-hole at end of antenna trace for soldering on an antenna. (1.25″ copper wire can be used for the antenna.)
Pycom	WiPy 2.0 and 3.0 versions				(None)	MicroPython programmable Wi-Fi & Bluetooth IoT development platform with a 1 km Wi-Fi range. FCC ID: 2AJMTWIPY2R Documentation (datasheet, pinout) Deep sleep issue and fix for affected boards (deep sleep shield schematic) See also: Pycom expansion boards & shields
	LoPy				(None)	Triple network board with Wi-Fi, BLE, and LoRa. FCC ID: 2AJMTLOPY1R Documentation (datasheet, pinout) Do not connect anything to pins P5, P6 and P7, since these pins are used by the SPI bus that controls the LoRa radio. These pins should be treated as NC (No Connection). Wiring connections to these pins will cause incorrect behavior of the LoRa radio. See also: Pycom expansion boards & shields
	LoPy4				(None)	Availability: 2017 December 11 shipment expected for pre-orders. Quadruple network board with Wi-Fi, BLE, LoRa, and Sigfox. pSRAM: 4 MiB Documentation Datasheet Pinout See also: Pycom expansion boards & shields
	SiPy				(None)	Triple network board with Wi-Fi, BLE, and Sigfox. Sigfox maximum Tx power variations: 14 dBmW ← RCZ1 & RCZ3 (Europe, Oman, South Africa; Japan) 22 dBmW ← RCZ2 & RCZ4 (United States, Mexico, Brazil; Australia, New Zealand, Singapore, Taiwan, Hong Kong, Colombia, Argentina) FCC ID: 2AJMTSIPY1 Documentation (datasheet, pinout) Do not connect anything to pins P5, P6 and P7, since these pins are used by the SPI bus that controls the Sigfox radio. These pins should be treated as NC. Wiring connections to these pins will cause incorrect behavior of the Sigfox radio. See also: Pycom expansion boards & shields
	GPy				(None)	Triple network board with Wi-Fi, BLE and cellular LTE CAT M1/NB1. Documentation (datasheet, pinout) See also: Pycom expansion boards & shields
	FiPy				(None)	Quintuple network board with Wi-Fi, BLE, LoRa, Sigfox and dual LTE-M (CAT M1 and NBIoT). Documentation (datasheet, pinout) See also: Pycom expansion boards & shields
SparkFun	ESP32 Thing	W25Q32FVSIG			FTDI FT231XS	Small development board with RST/IO0 buttons and LiPo battery charger. Uses non-typical frequency; note ESP-IDF crystal frequency setting. ⚠️ Hookup guide Pinout Schematic Repository Accessories: Power control shield Hookup guide, schematic, Eagle files (ZIP), MC33926 datasheet, repository Environment sensor shield Includes sensors for pressure/humidity/temperature (BME280), air quality (CCS811), and ambient light (APDS-9301). Qwiic shield Schematic, Eagle files (ZIP), repository
WEMOS	LOLIN32 Lite				WCH CH340C	Development board with USB-to-UART bridge, USB connector, battery connector (JST PH 2-pin, 2.0 mm spaced), battery charging circuit (500 mA max charging current), and Reset button. Wiki article Seller: WEMOS CC Store on AliExpress
“WeMos” / Lily GO (not WEMOS.cc group)	Pro ESP32				FTDI FT231XS	Clone of the SparkFun ESP32 Thing board. Compact ESP32 based development board with battery connector, and the typical development board component accoutrements. Size: 2.5 cm × 5.9 cm (0.98 in. × 2.32 in.) Pinout Seen both with and without “WeMos” logo label. (Although, not made by WEMOS.) Sellers: Banggood and various vendors on AliExpress.
	Pro ESP32 OLED				?	Clone of Heltec Automation’s WIFI Kit 32 board.
	TTGO LoRa		U.FL for LoRa		?	Clone of Heltec Automation’s WIFI LoRa 32 board. U.FL connector is for the LoRA antenna. Available without OLED too.
	TTGO LoRa32		U.FL for LoRa		?	Similar to, but slightly different than, Heltec Automation’s WIFI LoRa 32 board. Notably, it uses a planar inverted-F antenna (shaped metal) for Wi-Fi. U.FL connector is for the LoRA antenna.
	TTGO T7				?	Uses ESP32-PICO-D4 SiP module. Includes connectors for USB and battery.
Whitecat	ESP32 N1				(None)	Whitecat N1 board without LoRa transceiver. Second voltage regulator for power on / power off sensors through a dedicated GPIO. AE1 (ceramic antenna) & UFL1 (U.FL connector for external antenna) are for ESP32 wireless connectivity. Size: 78 mm × 26 mm Seller: Whitecat (€30)
	ESP32 N1 LORA				(None)	Whitecat N1 board with LoRa transceiver. Second voltage regulator for power on / power off sensors through a dedicated GPIO. AE1 (ceramic antenna) and UFL1 (U.FL connector for external antenna) are for ESP32 wireless connectivity. AE2 (ceramic antenna) and UFL2 (U.FL connector for external antenna) are for the LoRa WAN transceiver. Size: 78 mm × 26 mm Seller: Whitecat (€40)
Widora	Air				SiLabs CP2104	A development board with a slim form-factor that makes it great for use on a breadboard. Flash memory: the Air V6 lists the included flash memory as 4 MiB, however, earlier versions are reported to include a 16 MiB flash chip instead. Size: 2440 mil × 700 mil (61.976 mm × 17.78 mm) Overview/datasheet Schematics: V6, V5, V4 History: 2016 Sept 21: V1.0 up and running. 2016 Oct 18: V3.0 photo; development and testing finalized. 2017 Feb 22: V4.0 boards assembled. 2017 Mar 5: V5.0 on a breadboard. 2017 Sept 1: V6.0 boards assembled.

Small & Medium Development Boards/Modules (Using PCB Module)

Development boards are designed to be easily worked with for the purpose prototyping and development. Typically this means connections are broken out with 0.1″ spaced headers (in contrast to the more tightly spaced connections seen on the compact surface-mount module boards). Furthermore, development boards often contain on-board components to aid in easy prototyping & programming — e.g., power-supply/regulation, USB-to-UART, and buttons for flashing & resetting.

Large Development, Specialty & Project Boards

MAKER	MODEL	SURFACE-MOUNT MODULE	FLASH MEMORY	USB⇔UART	NOTES
Espressif 📌	ESP-WROVER-KIT previously ESP32-DevKitJ	ESP32-WROVER or ESP-WROOM-32	from module	FTDI FT2232HL	Other notable components: Display: 3.2″ SPI LCD USB⇔JTAG: provided by FTDI FT2232HL Other data interfaces: microSD card, VGA camera Power: Interfaces: 5 VDC barrel jack & Micro-B USB LDO: NCP1117 (1 A); can be replaced with LM317DCY (1.5 A) Versions & schematics: V1 (red solder mask): Schematic V2 (black solder mask): Schematic V3 (black solder mask with female header camera connector): Schematic Discussion of V1/V2 differences Getting started guide Demos & code: Nofrendo NES-Emulator (video), camera demo, LCD driver & sample code (forked from ESP32_Adafruit_ILI9341). Sellers: Adafruit, Grid Connect, and Olimex
	ESP32-LyraTD-MSC	ESP32-WROVER	from module	SiLabs CP2102N	ESP32-LyraTD-MSC (previously ESP32-LyraTD-MS1) is a circular board for audio playback & recording intended to be used in an “Alexa type” product. ESP32-LyraTD-MSC will be the first ESP32-Lyra board approved for public release. There have been several different ESP32-Lyra boards developed internally — varying in physical form and technical specifications. For example, the older ESP32-Lyra32T V2 and ESP32-LyraT boards were rectangular with built-in touch-based controls. The ESP32-LyraTD-MSC Audio-Mic HDK (hardware development kit) combines the ESP32-LyraTD-MSC (“audio-mic development board”) with a secondary “top” board. The kit features an ESP32-WROVER module, microSD card slot (for storage of audio files), 4-microphone array (supports up to 3 meter sensitivity when playing music), DSP chip for handling the 4-mic array input, phone jack, left & right speaker output ports, audio driver chip, DC/DC boost power supply, power switch, battery connector, USB power input port, USB connectivity port, UART headers, JTAG headers, I²S headers, I²C/SPI headers, and more. Wi-Fi Certified interoperability certificate ID: WFA69503 History (including precursor boards): 2016 Sept 7: Some details toward the end of this press release 2017 Aug 24: “Espressif Joins Baidu’s Conversational AI Platform with ESP32-LyraT” 2018 Jan 13: ESP32-LyraTD-MS1 2018 Feb 16: “Espressif ESP32 LyraTD MSC HDK is Designed for Smart Speakers, Wireless Audio and other Smart Home Appliances” 2018 Feb 18: “A First Look at ESP32-LyraTD-MSC Audio Mic HDK with Baidu DuerOS Assistant”; video
	ESP-Sense Kit	ESP-WROOM-32	from module	(None) use with ESP-Prog	The ESP32 touch sensor development kit, ESP32-Sense Kit, is used for evaluating and developing ESP32 touch sensor system. ESP32-Sense Kit consists of one motherboard and multiple daughterboards. The motherboard contains a display unit, a main control unit and a debug unit. The daughterboards have touch electrodes in different combinations or shapes, such as linear slider, wheel slider, matrix buttons and spring buttons, depending on the application scenarios. Users can design and add their own daughterboards for special usage cases. Getting started guide Reference design (ZIP) Availability: unreleased; coming soon.
	ESP32 Demo Board V2	ESP-WROOM-32	from module	FTDI FT232RL	A large development & demo board with large, circular touch pads. Schematic
Aitendo	IoT Express	ESP-WROOM-32	from module	FTDI FT234XD	Sold as DIY assembly parts kits: IEPK-F01, IEPK-S02, and IEPK-S01. Article
AnalogLamb	Maple ESP32	ESP-32S-ALB, ESP-32S, or ESP-WROOM-32	from module	SiLabs CP2104	Notable features: microSD card interface & battery interface. Versions: R1 (currently sold), R2 (coming soon) Diagrams: Assembly drawing Schematic Hackaday.io project
Arducam	ESP32S UNO	ESP-32S or ESP-WROOM-32	from module	SiLabs CP2102	ESP32 based development board for use with an Arducam camera module. Setup guide (Arduino IDE) Repository (Arduino IDE support)
Asukiaaa	ESP32BB	ESP-WROOM-32	from module	SiLabs CP2102 (rev 1.0–1.4 used FT232RQ)	Development board for ESP-WROOM-32 (or ESP-32S) with Micro-USB connector, USB⇔UART, buttons, and breadboard. Schematic Size: 60.96 mm × 43.18 mm Repository (KiCad project) Versions/revisions: 1.0 (photos), 1.1 (photos), 1.2 (photos), 1.3 (photos), 1.4 (photos), 2.0 (photos), 2.1, 2.2 Starting with revision 2.0, SiLabs CP2102 is used instead of FTDI FT232RQ for the USB-to-UART chip.
	ESP32Stack	ESP-WROOM-32	from module	SiLabs CP2102	A stacking board with ESP-WROOM-32, Micro-B USB, CP2102 USB-to-UART, and more. Schematic Size: 56.388 mm × 48.514 mm Repository Photos See also: EmptyStack
DOIT	ESPDUINO-32	ESP-WROOM-32	from module	WCH CH340	“Arduino-style” development board with ESP-WROOM-32 module. Wiki article (English) Wiki article (Chinese) Schematic Manual (Chinese)
EngeBOT	WROOMBEE32	ESP-WROOM-32	from module	(None)	Appears to be an ESP-WROOM-32 based board with XBee pinout compatibility. 2017 Sept 14: Photos on Facebook and Twitter
ESP32.vn	ESP32-IoT-Uno	ESP-WROOM-32	from module	SiLabs CP2102	Open source hardware ESP32-based Arduino Uno style development board with microSD card slot, DC power barrel jack, battery connector & charger, USB connector, and more. Documentation Pinout Schematic Repository
Fab-Lab Europe Guido Burger	OCTOPUS	ESP-WROOM-32 on Adafruit HUZZAH32	from module	SiLabs CP2104	IoT badge and development board originally designed to use an ESP8266-based Ai-Thinker ESP-12 series module, but has thru-holes compatible with the Adafruit Feather, and so the Adafruit HUZZAH32 (ESP32 Feather Board) can be used with this board. USB-to-UART bridge: The OCTOPUS board and the Adafruit HUZZAH32 both use SiLabs CP2104. Photo comparing OCTOPUS with ESP-12F (ESP8266-based) and with Adafruit HUZZAH32 (ESP32-based).
Freematics	ESPRIT	Custom ESP-WROOM-32 Clone	from module	SiLabs CP2102	Freematics ESPRIT is an Arduino compatible development board based on Espressif ESP32 with additional features for telematics projects. Features an xBee socket with switchable VCC voltage (3.3 V or 5 V), so 2G (SIM800) and 3G (SIM5360) xBee modules will work on it to provide cellular network access. The second and third serial UARTs can be accessed from two onboard 4-pin connectors, which the Freematics OBD-II adapter and GPS receiver can be hooked on. Freematics repository Contains files for Freematics ESPRIT and other Freematics hardware. Purchasing: Freematics, Freematics on Tindie
John Spencer & Angus Gratton	ESPlant V2.0	ESP-WROOM-32 or ESP-32S	from module	SiLabs CP2102	Environmental Sensor Plant — solar Wi-Fi gardening/meteorological sensor. ESPlant V2.0 is the ESP32-based version of the original ESPlant ESP8266-based board. John Spencer’s V2.0 branch (originally forked from CCHS Melbourne repository) Schematic Photos: Bare board & assembled board
Keri’s Lab Ryotaro Onuki	KERISP32	ESP-WROOM-32 (or compatible)	from module	FTDI FT232RL	LDO: NJM2884 Features: microSD slot, Micro-B USB connector Repository Early designs used FT234XD, but FT232RL is currently used. Availability: Unreleased; under development
Makestro/DycodeX	ESPectro32	ESP-WROOM-32	from module	?	A fun development board with Micro-USB connector, LiPo battery JST connector, on/off switch, USB-to-UART bridge, 7×7 LED matrix (controlled by charlieplexing method using IS31FL3731), Neopixel LED (IO27), LED (IO15), power LED, reset & flash button, large silicone buttons with capacitive touch areas immediately above, microSD card slot, gesture & light sensor photo transistor (KDT00030TR), I²S breakout connector, I²C Grove connector, GPIO Grove connector, 2×20 pin header breakout, five alligator-clip friendly pads, I²C 2.54 mm connection for extended OLED 128×64 pixel display, and more. Pinout: top & bottom History: 2016 Oct 21: design teaser 2016 Oct 25: design progress 2016 Oct 26: more design progress 2016 Nov 8: hardware v0.1 blink test 2016 Nov 24: hardware v0.2 soldering 2017 Aug 14: hello, smile demo 2017 Aug 24: photo collage 2017 Aug 25: Neopixel LED & LED matrix demo #ESPectro32 on Twitter Related: ESPectro32 + ALORA Ver. 2 Development Kit
Microwavemont	ESP32 Super Board	ESP-WROOM-32	from module	FTDI FT231X	ESP32 development board with an OLED (connected via I²C) and LiPo battery charger. Hackaday.io project Editions: 1.3″ Monochrome OLED (retired; was $25) Code: SH1106 sample code and modified support library. Video: Monochrome OLED Demo 0.95″ Color OLED ($33) Code: SSD1331 sample code and support library. Video: Color OLED Demo
	GRANDE ESP32 Monster Board	ESP-WROOM-32	from module	SiLabs CP2102	ESP-WROOM-32 based development board with SH1106 OLED display (128×64 pixels), RJ-45 Ethernet connector, CAN-bus connector, Micro USB connector, USB-to-UART bridge, LiPo battery connector and charging circuit. Notable differences from original ESP32 Monster Board: Added “LiPo charger enable/disable jumper”, allowing for either LiPo battery power operation (and recharging by USB power) or only USB power mode. Top-side mounted (instead of bottom-side mounted) ESP-WROOM-32 module. Video Board labeling of jumpers for “USB-powered” and “LiPo charged circuit enable” is reversed. ⚠️
	ESP32-ADB Audio Developing Board	ESP-WROOM-32	from module	SiLabs CP2102 (rev. 1 used FT231XS)	ESP32 audio development board with PCM5102A I²S DAC, USB-to-UART, LiPo charger, and 1.3″ OLED display (SH1106 via I²C). Versions/revisions: Rev. 1: Used FT231XS USB⇔UART. Rev. 2: Uses CP2102 USB⇔UART; has enable/disable jumper for LiPo charger. Code: ESP32 OLED WebRadio Seller: Microwavemont on Tindie ($26)
	ESP32-ADB-Edge	ESP-WROOM-32	from module	SiLabs CP2102	Board with MEMS Microphone (ICS-43434) and class-D amplifier embedded 1-channel DAC (Maxim MAX98357A); intended for Amazon Alexa experimentation and development. History: 2017 Aug 19: Announcement 2017 Aug 20: Video
	ePaper plus ESP32-ADB	ESP-WROOM-32	from module	SiLabs CP2102N	ESP32 development board with ePaper display, TI PCM5102A DAC, ICS43434 MEMS Microphone, CP2102N USB-to-UART bridge, microSD card slot, and LiPo charger. History: 2017 Nov 10: ePaper testing & photo 2017 Nov 14: Early development 2017 Nov 19: Troubleshooting, assembled boards, and video 2017 Nov 20: Feature summary
	ESP32 Web Radio & BT Receiver with Class-D Amp	ESP-WROOM-32	from module	FTDI FT231XS	ESP32 web radio and Bluetooth audio development board with I²S DAC (TI PCM5102A) and class-D amplifier (TI TPA3110). Kit includes fully-tested (completed) main board and 100–240 AC/DC 9 V adapter. Code: ESP32 OLED WebRadio Seller: Microwavemont on Tindie ($50)
Noduino	Quantum	(SoC directly incorporated.)	W25Q128FV or MXIC 25L128	SiLabs CP2102	An “Arduino-style” development board. Antenna: MIFA (PCB trace) U.FL connector (for external antenna) Product page on Taobao.
Olimex	ESP32-EVB	ESP-WROOM-32	from module	WCH CH340T (rev. B only)	Features: Two relays (250 VAC / 10 A), Ethernet (100BASE-T), microSD card connector, infrared transmitter/receiver (Rev. B only), reset & user buttons, UEXT connector to attach different sensors & modules, 40 pin GPIO 0.1″ step connector, LiPo charger & step up converter allowing ESP32-EVB to run from LiPo battery, 5 V power barrel jack, CH340T USB-to-UART (Rev. B only), and three mount holes. Repository Versions/revisions: Rev. A: Schematic Rev. B: Schematic
	ESP32-GATEWAY	ESP-WROOM-32	from module	WCH CH340T	A stripped down version of ESP32-EVB that keeps the connectivity: Wi-Fi, BLE, Ethernet, USB for programming, and microSD card slot. Size: 50 mm × 62 mm Schematic Repository 2017 June 1: Announcement & sneak preview
	ESP32-PRO	(SoC directly incorporated.)		Microchip PIC32MX270	Board with 4 MiB pSRAM, 4 MiB flash, external crypto engine (ATECC508A), LiPo charger, SD/MMC card slot, and USB On-The-Go (USB-OTG). Announcement & general info Repository & schematic Availability: Unreleased; under development
ProtoCentral	Kalam32-Dev	(SoC directly incorporated.)	W25Q32	FTDI FT231X	Development board with “Arduino Uno style” form factor, two capacitive touch switches, three WS2812B addressable RGB LEDs, and battery connector. Antenna: IFA (PCB trace) Schematics & other documents
Robotika Brno	RB3200-ESP32universal	ESP-WROOM-32	from module	SiLabs CP2102	Features four pin headers for each of the ESP-WROOM-32 module’s pins, Arduino Uno compatible header, USB-to-UART, support for an external power supply with high-current voltage regulator, and diagnostic LEDs. Repository
SKYLAB	WG215 EVB	WG215	? from module	SiLabs CP210X (unconfirmed)	Development/evaluation board for SKYLAB’s WG215 surface-mount module. Seller: SKYLAB on AliExpress
SunDUINO	ESP32 SunDUINO	ESP-WROOM-32	from module	(None)	Arduino-style development board. Power connectors: 5 V DC barrel & Micro-B USB (for power only) LDO: AMS1117 USB⇔UART: None on-board
ThousanDIY	Unopuino32S	ESP-WROOM-32	from module	SiLabs CP2102	ESP32 based development board in the Arduino Uno form factor style. Product info Pinout Schematic KiCad files Gerber files BOM list Arduino IDE header file Seller: Switch Science
United Technologies	GHX_BOARD_V1	WB_MODE_V1	from module	?	Sold by: 联美科技 (“United Technologies”) Price: $18 USD (approx.) Module: Clone of ESP-32S labeled “WB_MODE_V1”.
“WeMos” / Lily GO (not WEMOS.cc group)	D1 R32	ESP-WROOM-32	from module	WCH CH340	Arduino-style development board. Has “WeMos” branding on the board, but not actually from WeMos. Similar to DOIT’s ESPDUINO-32 board, but was available before the ESPDUINO-32. Sellers: vendors on AliExpress
	HiGrow	ESP-WROOM-32	from module	SiLabs CP210? (unconfirmed)	An implementation of HiGrow (Luca Fabbri). HiGrow Arduino code repository HiGrow Hackaday.io project Size: 193.57 mm × 29.38 mm Has been seen with two different branding labels: “HiGrow” and “WeMos”. (Note: not a product from the WEMOS.cc group.) Sellers: Banggood, Lily GO on AliExpress
WhyEngineer	ESP32_CIRCLE	ESP-WROOM-32	from module	SiLabs CP2104	Circular board with ESP-WROOM-32 module, Ethernet (LAN8720A), stereo audio CODEC (WM8978), microphone, 3.5 mm audio receptacle, USB-to-UART bridge (CP2104), Micro USB connector, and SD card slot. Wiki article Schematic Gerber files Repository Seller: WhyEngineer on Taobao
	ESP32_SNOW	ESP32-WROVER	from module	SiLabs CP2104	Rectangular board with ESP32-WROVER module, CODEC (WM8978), six-axis (gyro + accelerometer) MEMS motion tracking (MPU-6050), Li-Ion battery charger (BQ24075), SD card slot, USB-to-UART bridge (CP2104), and Micro USB connector. Wiki article Schematic Gerber files Repository Video Sellers: WhyEngineer on Taobao, Frankie on Tindie
WiFiBoy	WiFiBoy32 WB32	ESP-WROOM-32 or ESP-32S	from module	SiLabs CP2102	IoT game development kit. Prototype video (2016 Oct 19) WiFiBoy.org Twitter Related: WiFiBoy ESP32 Forth project 010 & 020

Other Development Boards & Specialty Projects

Development Flashing/Testing Fixture Boards

Fixture for temporarily connecting to a module for the purpose of programming/flashing and testing. (No soldering.)

Buttoned Breakout Boards

Breakout boards (for modules) that include programming buttons, and perhaps with a few supplemental components, but lacking components otherwise included on typical development boards.

Basic Breakout Boards

Basic breakout boards (for modules) without any programming buttons and often without any other components (but some have capacitors); breaking out the surface-mount module’s tightly-spaced castellated edge connections into wider-spaced connections for headers.

Boards Using ESP32 for Supplementary Purposes

Boards where ESP32 is not the primary component; used as a supplementary component, providing Wi-Fi/Bluetooth connectivity.

Industrial, Commercial, and General Consumer Devices

PURCHASING

Disclaimer: Vendors are listed here for informational purposes only. Buyers should use prudence and careful judgement when ordering. Before ordering, read all product descriptions and check vendor ratings when possible. Prices listed below are approximate and do not include shipping costs. Furthermore, prices listed below may be outdated, so be diligent and check for yourself.

Note to the beginner: If you are just getting started and don’t know what to purchase, it would probably be best for you to purchase a development board (instead of an surface-mount module) for easier hardware setup and an better first time experience. Espressif’s official, publicly sold development boards are ESP32-PICO-KIT, ESP32-DevKitC, and ESP-WROVER-KIT.

Note about Taobao: Taobao is a Chinese marketplace. For international shopping, intermediary agents are often used (for a fee, of course). Those unfamiliar with Taobao should read Naomi Wu’s “Source Parts on Taobao: an Insider’s Guide” and Eric’s “How to Buy Directly from Taobao” before attempting to make a purchase through the venue.

QFN Packaged Chips

A few words of clarification because some people have erroneously confused chips with surface-mount PCB modules: If you wish to purchase just the Espressif ESP32 chip itself, understand that this means you’re only receiving the fabricated silicon contained within a tiny Quad-Flat No-leads package. For those seeking integration/inclusion of ESP32, using an surface-mount module board with ESP32 inside is often more desirable, since such modules combine an ESP32 chip, 40 MHz crystal (clock), flash memory chip, and appropriate “glue” components into a ready-to-use, compact assembly. Having said that, if you wish to purchase only the chip and not a module board, you can purchase the chip through vendors listed below. You can also find sellers in venues like eBay and AliExpress using search queries with “ESP32” and “QFN”, “SMT”, “SMD”, “package”, “bare” or “raw”; also using the full identifier (such as “ESP32-D0WDQ6” or “ESP32-D2WD”) in search queries may prove fruitful.

In addition to the sellers listed below, you can contact Espressif directly for chip purchase inquiries. For small quantities, Espressif will likely direct you to an appropriate distributor to contact. If you are a distributor or otherwise interested in ordering a large quantity of parts, the minimum order quantities for parts direct from Espressif are listed in the Espressif Products Ordering Information document.

QFN Packaged Module

Compact Surface-Mount PCB Modules

Compact modules designed for surface-mount technology integration are listed below. Surface-mount modules which have received FCC IDs include the Espressif ESP-WROOM-32 (2AC7Z-ESPWROOM32), ESP32-WROVER (2AC7Z-ESP32WROVER), Ai-Thinker ESP-32S (2AHMR-ESP32S), Guoyun ESP-32F (2AM77-ESP-32F), Pycom W01 (2AJMTWIPY01R) and L01 (2AJMTLOPY01R).

Development Boards/Modules

In contrast to compact surface-mount modules, development boards break out connections to be larger and more “human scale” for easier prototyping and development and frequently include additional circuity and interfaces for power supply and programming.

Pycom WiPy 2.0 (FCC ID 2AJMTWIPY2R), Pycom LoPy (FCC ID 2AJMTLOPY1R), and Pycom SiPy (FCC ID 2AJMTSIPY1) development boards/modules have received FCC IDs. Development boards that employ surface-mount modules with FCC IDs (such as the Espressif ESP-WROOM-32, Espressif ESP32-WROVER, or Ai-Thinker ESP-32S module) will have that module component certified.