Rui CarmoThese little modules have taken hobby electronics by storm, so of course I grabbed a few of them and have been hacking away quietly on both the ESP8266 and the ESP32.
Resources
| Category | date | Link | Notes |
|---|---|---|---|
| Applications | 2026 | Offline-Wikipedia-ESP32 | offline Wikipedia reader for ESP32 CYD/C3 touchscreen boards, storing article, image, and search data on microSD |
| Win-95-Tracker-Cyd | Small tracker music player with a Windows 95 aesthetic for the Cheap Yellow Display (ESP32 CYD board). | ||
| MimiClaw | Telegram-based AI assistant for ESP32-S3 using LLM APIs | ||
| hacker-news-cyd | A Hacker News reader for ESP32 Cheap Yellow Displays, with a neat Wireguard twist | ||
| esp32-ai | embedded AI project for ESP32 | ||
| Cameras | 2024 | esp32-homekit-camera | a camera project that I keep trying to fix |
| Displays | 2026 | ESP32 E-Paper Weather Display | An ESP32 e-paper weather display project with a nice visual design for the weather screen |
| 2024 | ESP32-Cheap-Yellow-Display Audio Fixes | a video on how to fix audio issues with the Cheap Yellow Display | |
| 2023 | ESP32-Cheap-Yellow-Display | a set of libraries for the ESP32-2432S028R and similar displays | |
| Documentation | 2023 | ESP32 Buyer's Guide | an updated guide to the various SKUs for 2023 |
| Emulation | 2025 | ESP32 Rainbow | a ZX Spectrum emulator for the ESP32 |
| tiny386 | An x86 emulator for the ESP32 that can run Windows 95 | ||
| 2021 | Retro ESP32 | a set of emulators for ESP32, mostly targeting the Odroid Go | |
| Firmware | 2026 | OpenC6 BIOS | an open-source modular BIOS/payload firmware platform for the ESP32-C6 with a custom ABI and RISC-V support |
| ESP3D | firmware for ESP8266/ESP32 boards that adds Wi-Fi/web UI control for 3D printers, CNC, and sand tables | ||
| GUI | 2026 | M5Tab5-UserDemo | an ESP-IDF v5.4.2 M5Tab5 hardware demo app with LVGL-based desktop and device builds |
| 2022 | slint | a GUI toolkit that can run in MCUs like the Pi pico and the ESP32 | |
| Graphics | 2026 | roo_display | A display library for ESP32 |
| EPD Painter | fast M5PaperS3 e-paper display driver | ||
| Hacks | 2020 | Hacking A Mitsubishi Heat Pump | I need to do this to mine |
| Hardware | 2026 | wide-mcu-breadboard | 3D-printable breadboard body for wide MCUs like ESP32 and Pi Pico, reusing standard spring contacts to give four free holes per pin |
| IoT | 2026 | ESPConnect | browser-based ESP32 manager for exploring, backing up, and restoring devices |
| 2021 | AI-on-the-edge-device | an impressive water meter reader solution using an ESP32 | |
| Libraries | 2026 | esposito | an ESP32 mini-OS/framework for cheap yellow displays with dynamic SD-loaded apps and touchscreen/keyboard support |
| 2023 | HomeSpan | Arduino library for creating your own ESP32-based HomeKit devices | |
| rtl_433_ESP | an Arduino library for use on ESP32 boards with to decode 433MHz sensor signals | ||
| Home Accessory Architect | a set of libraries to create HomeKit devices | ||
| littlefs | A little fail-safe filesystem designed for MCUs | ||
| DeviceScript | TypeScript for Tiny IoT Devices (ESP32, RP2040, etc.) | ||
| PicoMQTT | An MQTT client and server library for ESP8266 and ESP32 devices. | ||
| esp32-ir-powermeter | a library to read power usage from a digital power meter via the infrared interface | ||
| 2022 | FabGL | a set of ESP32 libraries that allow for VGA output and various graphics-related functionality, as well as terminal emulation | |
| 2020 | HeatPump | the library to talk to Mitsubishi ACs | |
| 2019 | SSD1306 Driver | This driver works correctly with the 1.1.0 revision Wemos D1 OLED shields I have | |
| 2017 | pubsubclient | A smaller, simpler MQTT library | |
| McLighting | An RGB LED controller library | ||
| 2016 | esp_mqtt | a MQTT library with SSL support | |
| M5Stack | 2020 | WiFi Hash Monster | an EAPOL sniffer (and generic Wi-Fi monitor) |
| CovidSniffer | a COVID tracker BLE sniffer | ||
| Mods | 2024 | ESP32_TFT_PIO | a Cheap Yellow Display project with mods to improve the audio quality |
| Networking | 2026 | BlueRetro | ESP32 Bluetooth adapter for multiplayer controllers on retro game consoles and computers |
| wolfIP | a lightweight TCP/IP stack for resource-constrained MCUs with no dynamic allocations, fixed socket/buffer limits, BSD-like sockets, and a FreeRTOS port. | ||
| 2024 | Zimodem | custom modem simulator with lots of features | |
| ESP32-Bluetooth-USB-dongle | use a ESP32 device like a Bluetooth dongle | ||
| WifiModem | ESP8266 firmware to act as a telnet modem and server | ||
| esp32-open-mac | an open source Wi-Fi driver for the ESP32 | ||
| WifiModem | Hayes modem emulation for ESP8266 modules | ||
| 2020 | espethernet | direct connection to a PHY device | |
| ESP32 NAT Router | a basic router for the ESP32 | ||
| 2017 | esp_wifi_repeater | An amazing Wi-Fi repeater, with basic mesh networking | |
| WiFiManager | A library for first-boot configuration of Wi-Fi connections | ||
| Operating Systems | 2026 | MicroPythonOS | a MicroPython-based OS for ESP32 with Android-like touch UI, app store, and OTA updates |
| KernelESP | UNIX-like control system for ESP8266 with serial shell, web UI, automation, mail alerts, and diagnostics. | ||
| BreezyBox | A BusyBox-inspired shell and virtual terminal system for ESP32 | ||
| BreezyDemo | A demo cyberdeck project using BreezyBox on an ESP32-S3 with LCD | ||
| 2025 | Tactility | An operating system focused on ESP32 | |
| 2021 | FUZIX | a minimal UNIX-like OS that can run on a variety of MCUs | |
| Lua-RTOS-ESP32 | a Lua-based RTOS for the ESP32 that also has a block-based editor | ||
| Photography | 2026 | Obscura One | An open-source screenless camera built around the ESP32-CAM with a fully 3D-printable body and Arduino firmware |
| Reference | 2023 | ESP01-Send-&-Receive-Circuit | a circuit to use the ESP-01 as an IR receiver |
| Resources | 2016 | ESP8266 superfast flashing | |
| 2013 | Getting Started with the ESP8266 | Everything you need to know. | |
| How to use the ESP8266-01 pins | Nice, straightforward overview | ||
| Runtimes | 2020 | mitsubishi2MQTT | a Tasmota-like firmware to control Mitsubishi ACs |
| 2019 | esphome | modular firmware for ESP8266 and ESP32 | |
| 2017 | esp-lisp | A tiny LISP interpreter | |
| 2016 | Arduino Core | An ESP8266 core for Arduino | |
| MicroPython | Which also supports the ESP8266 thanks to this Kickstarter campaign | ||
| 2014 | An SDK for the ESP8266 Wi-Fi Chip | The early days | |
| Security | 2026 | ESP32-DIV | Multi-band ESP32 wireless offensive/defensive toolkit for Wi-Fi, BLE and Sub-GHz testing and analysis. |
| 2024 | ESP32-Marauder-Cheap-Yellow-Display | A set of wireless security tools for the Cheap Yellow Display | |
| Tools | 2026 | esp-scope | A web-based oscilloscope for ESP32 boards that streams ADC data to a browser UI |
| ESP KVM | ESP32-based KVM project | ||
| xcc700 | Self-hosting mini C compiler for ESP32/Xtensa; emits relocatable ELF for ESP-IDF elf_loader | ||
| 2023 | ESP32-MPY-Jama | a MicroPython IDE for the ESP32 family | |
| 2022 | esp_ghota | a way to do OTA updates via GitHub | |
| Video | 2026 | p4kvm | proof-of-concept IP KVM built on ESP32-P4 |
| 2020 | espflix | an inspired ESP32 video hack |