Repository Index

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

• tasmota
• firmware
• esp8266
• sonoff

Flipper Zero Unleashed Firmware

• jailbreak
• keeloq
• rolling-codes
• alternative-firmware

Open-source keyboard firmware for Atmel AVR and Arm USB families

• keyboard-firmware
• c
• olkb
• ergodox-ez

Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.

• rtos
• iot
• embedded
• real-time

Flipper Zero firmware source code

• nfc
• rfid
• subghz
• stm32

TranslatedMy ultra-mini robotic arm project.

Affordable WiFi hacking platform for testing and learning

• wifi
• arduino
• attack
• esp8266

Embedded web server, with TCP/IP network stack, MQTT and Websocket

• websocket
• mqtt
• embedded
• webserver

RT-Thread is an open source IoT Real-Time Operating System (RTOS). https://rt-thread.github.io/rt-thread/

• embedded-systems
• kernel
• iot
• rtos

Open Source Flight Controller Firmware

• betaflight
• cleanflight
• flight-controller
• hacktoberfest

Eclipse Mosquitto - An open source MQTT broker

• mqtt
• broker
• mosquitto
• eclipse-iot

An open source, embedded, high performance g-code-parser and CNC milling controller written in optimized C that will run on a straight Arduino

RIOT - The friendly OS for IoT

• c
• iot
• os
• internetofthings

Implementations of SIMD instruction sets for systems which don't natively support them.

• simd-intrinsics
• sse
• neon
• arm

Mongoose OS - an IoT Firmware Development Framework. Supported microcontrollers: ESP32, ESP8266, CC3220, CC3200, STM32F4, STM32L4, STM32F7. Amazon AWS IoT, Microsoft Azure, Google IoT Core integrated. Code in C or JavaScript.

• iot
• aws
• aws-iot
• esp8266

An ultra-lightweight and blazing-fast Messaging Bus/MQTT Broker for Edge & SDV

• mqtt
• mqtt-broker
• iot-edge
• nng

Open source SDK to build Muse gadgets

Arduino library to play MOD, WAV, FLAC, MIDI, RTTTL, OGG/Opus, MP3, and AAC files on I2S DACs or with a software emulated delta-sigma DAC on the ESP8266 and ESP32 and Pico

• arduino
• esp8266
• mod
• wav

ESP32 Music streaming based on Squeezelite, with support for multi-room sync, AirPlay, Bluetooth, Hardware buttons, display and more

FW for ESP8266/ESP8285/ESP32 used with 3D printer

• arduino
• esp8266
• esp32
• 3d-printer

Roaring bitmaps in C (and C++), with SIMD (AVX2, AVX-512 and NEON) optimizations: used by Apache Doris, ClickHouse, Alibaba Tair, Redpanda, YDB and StarRocks

• roaring-bitmaps
• visual-studio
• c
• clang

The open-source files comprising Leap Motion's Project North Star AR Headset.

Play mp3 files from SD via I2S

• esp32
• max98357a
• i2s
• mp3

FM-RDS transmitter using the Raspberry Pi's PWM