Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at

Marlin is a firmware for RepRap 3D printers optimized for both 8 and 32 bit microcontrollers. Marlin supports all common platforms. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.

Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.

Arduino core for the ESP32

Affordable WiFi hacking platform for testing and learning

Arduino IDE 1.x

JavaScript Robotics and IoT programming framework, developed at Bocoup.

How to be low-level programmer

A suite of WiFi/Bluetooth offensive and defensive tools for the ESP32

Golang framework for robotics, drones, and the Internet of Things (IoT)

Your Gateway to Embedded Software Development Excellence :alien:

Tiny data-over-sound library

📟 JSON library for Arduino and embedded C++. Simple and efficient.

ESP8266 WiFi Connection manager with web captive portal

Open-source telemetry dashboard. Supports UART, BLE, MQTT, Modbus, CAN Bus and more.

Let's upgrade cheap off-the-shelf robotic mowers to modern, smart RTK GPS based lawn mowing robots!

U8glib library for monochrome displays, version 2

Set app volumes with real sliders! deej is an Arduino & Go project to let you build your own hardware mixer for Windows and Linux

Infrared remote library for Arduino: send and receive infrared signals with multiple protocols

An IoT Solution,Blinker library for embedded hardware. Works with Arduino R4, ESP32.

Arduino command line tool

An open source quadruped robot pet framework for developing Boston Dynamics-style four-legged robots that are perfect for STEM, coding & robotics education, IoT robotics applications, AI-enhanced robotics application services, research, and DIY robotics kit development.

Arduino and PlatformIO IDE compatible TFT library optimised for the Raspberry Pi Pico (RP2040), STM32, ESP8266 and ESP32 that supports different driver chips

JavaScript framework for robotics, drones, and the Internet of Things (IoT)

MQTT gateway for ESP8266 or ESP32 with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, Bluetooth, beacons detection, mi flora, mi jia, LYWSD02, LYWSD03MMC, Mi Scale, TPMS, BBQ thermometer compatibility & LoRa.

Blynk library for IoT boards. Works with Arduino, ESP32, ESP8266, Raspberry Pi, Particle, ARM Mbed, etc.

DIY split-flap display

🔱 Javascript's God Mode. No VM. No Bytecode. No GC. Just native binaries.

Infrared remote library for ESP8266/ESP32: send and receive infrared signals with multiple protocols. Based on: https://github.com/shirriff/Arduino-IRremote/

OpenBot leverages smartphones as brains for low-cost robots. We have designed a small electric vehicle that costs about $50 and serves as a robot body. Our software stack for Android smartphones supports advanced robotics workloads such as person following and real-time autonomous navigation.