function: embedded
735 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| torvalds/linux The official source tree of the Linux kernel, the core of Linux operating systems that manages hardware, system resources, and fundamental … | 77 | 244454 | stable |
| DarkFlippers/unleashed-firmware Unleashed Firmware is an unofficial custom firmware (CFW) for the Flipper Zero multitool device, written in C. It extends the stock firmwar… | 95 | 22122 | active |
| scottbez1/smartknob SmartKnob is an open-source haptic input knob combining a brushless gimbal motor and magnetic encoder with closed-loop torque control to si… | 23 | 22082 | active |
| qmk/qmk_firmware QMK (Quantum Mechanical Keyboard) is open-source firmware for custom keyboards and other input devices, supporting Atmel AVR and ARM USB mi… | 77 | 20659 | stable |
| Atmosphere-NX/Atmosphere Atmosphère is a customized firmware (CFW) for the Nintendo Switch, composed of components that replace and patch the console's bootloader, … | 91 | 19473 | active |
| tinygo-org/tinygo TinyGo is an alternative Go compiler based on LLVM designed for small places such as microcontrollers, WebAssembly (WASM/WASI), and compact… | 88 | 17670 | active |
| Marlin Firmware Marlin is open-source (GPL-3.0) firmware for RepRap 3D printers, CNC machines, and laser engravers, running on 8-bit AVR and 32-bit ARM mic… | 96 | 17550 | active |
| espressif/arduino-esp32 The official Arduino core that enables Arduino programming for the ESP32 family of SoCs, built on top of ESP-IDF. It provides board definit… | 93 | 17287 | stable |
| esp8266/Arduino An Arduino core that brings full Arduino support to the ESP8266 WiFi chip, letting users write standard Arduino sketches that run directly … | 66 | 16668 | active |
| flipperdevices/flipperzero-firmware The official open-source firmware for the Flipper Zero, a portable multi-tool device for interacting with access control systems. It implem… | 81 | 16515 | active |
| zephyrproject-rtos/zephyr Zephyr is a scalable, secure, real-time operating system (RTOS) designed for resource-constrained embedded devices across multiple hardware… | 94 | 16316 | stable |
| ArduPilot/ardupilot ArduPilot is an open-source autopilot firmware suite (ArduPlane, ArduCopter, ArduRover, ArduSub) written in C++ that controls unmanned vehi… | 98 | 15748 | stable |
| peng-zhihui/Dummy-Robot Dummy-Robot is a complete open-source design for a super-compact smart robotic arm, including 3D/CAD mechanical models, PCB hardware design… | 32 | 15429 | active |
| Raspberry Pi Linux Kernel The Raspberry Pi fork of the Linux kernel source tree, containing patches and drivers for Raspberry Pi hardware. It is the upstream source … | 77 | 13104 | active |
| RT-Thread/rt-thread RT-Thread is an open-source, community-based real-time operating system (RTOS) for IoT and embedded devices, written primarily in C. It com… | 75 | 12170 | stable |
| Klipper3d/klipper Klipper is open-source firmware for 3D printers that combines a general-purpose computer (like a Raspberry Pi) with one or more micro-contr… | 76 | 11845 | stable |
| nasa/fprime F´ (F Prime) is a component-driven, flight-proven C++ framework from NASA JPL for rapidly developing and deploying spaceflight and other em… | 95 | 11695 | stable |
| Betaflight Betaflight is open-source flight controller firmware for multi-rotor and fixed-wing RC craft, written in C for STM32-based boards, focusing… | 94 | 11463 | active |
| sqlite/sqlite The official Git mirror of the SQLite source tree, containing the complete source code for the SQLite embedded SQL database engine. SQLite … | 77 | 10347 | stable |
| lua/lua The official development repository of Lua, a powerful, lightweight, embeddable scripting language implemented in C. It includes the langua… | 86 | 10256 | stable |
| Flipper-XFW/Xtreme-Firmware Xtreme Firmware is a feature-rich custom firmware for the Flipper Zero multitool device, written in C. It bundles many community apps, adde… | 10 | 9907 | active |
| MiCode/Xiaomi_Kernel_OpenSource Xiaomi's official open-source release of the Linux kernel sources for its phones and tablets, organized as one branch per device and Androi… | 76 | 9815 | active |
| embassy-rs/embassy Embassy is a next-generation embedded framework for Rust that uses async/await for cooperative multitasking on microcontrollers without an … | 77 | 9739 | active |
| ophub/amlogic-s9xxx-armbian A set of shell scripts and build tooling that produces Armbian (Debian/Ubuntu-based) images for Amlogic, Rockchip, and Allwinner ARM device… | 98 | 9678 | active |
| nasa-jpl/open-source-rover The JPL Open Source Rover is a build-it-yourself, scaled-down 6-wheel rover based on the design JPL uses to explore Mars, made entirely fro… | 66 | 9611 | active |
| peng-zhihui/ElectronBot ElectronBot is an open-source mini desktop robot inspired by EVE from WALL-E, featuring 6 degrees of freedom, USB communication, and a disp… | 34 | 9466 | active |
| hybridgroup/gobot Gobot is a Go framework for robotics, physical computing, drones, and IoT, supporting 35+ hardware platforms including Arduino, Raspberry P… | 58 | 9454 | active |
| francescopace/espectre ESPectre is an open-source motion detection system that analyzes Wi-Fi Channel State Information (CSI) on ESP32 devices to detect movement … | 78 | 9151 | active |
| Next-Flip/Momentum-Firmware Momentum Firmware is a feature-rich, stable, and highly customizable custom firmware for the Flipper Zero multitool device, written in C. I… | 75 | 9081 | active |
| Ralim/IronOS IronOS is open-source replacement firmware for portable soldering irons such as the Miniware TS100/TS80/TS101, Pinecil, and Sequre models. … | 69 | 8319 | stable |
| joeycastillo/The-Open-Book The Open Book is an open-source e-reader hardware design built around the Raspberry Pi Pico and an e-paper display, intended to be assemble… | 32 | 8051 | active |
| NodeMCU NodeMCU is an open-source Lua-based interactive firmware for the ESP8266, ESP8285, and ESP32 WiFi SoCs, implemented in C on top of the Espr… | 62 | 7943 | active |
| hrvach/deskhop DeskHop is an open-source hardware/firmware project that turns two Raspberry Pi Pico (RP2040) boards into a fast KVM-like keyboard and mous… | 77 | 7882 | active |
| EmenstaNougat/ESP32-BlueJammer ESP32-BlueJammer is firmware for an ESP32 paired with nRF24 modules that disrupts 2.4GHz communications (Bluetooth, BLE, WiFi, RC) by flood… | 50 | 7822 | active |
| FreeRTOS The classic FreeRTOS distribution, a real-time operating system for microcontrollers and small microprocessors that submodules the FreeRTOS… | 67 | 7723 | stable |
| linux-surface/linux-surface A patched Linux kernel and associated packages that add hardware support for Microsoft Surface devices not yet available in upstream kernel… | 82 | 7623 | active |
| FastLED/FastLED FastLED is a fast, efficient C++ library for controlling addressable LED strips and pixels (WS2812/Neopixel, APA102, LPD8806, and many more… | 96 | 7476 | stable |
| crosspoint-reader/crosspoint-reader CrossPoint Reader is open-source, community-maintained e-reader firmware for ESP32-C3-based Xteink X3/X4 devices. It provides EPUB renderin… | 82 | 7358 | active |
| relativty/Relativty Relativty is an open-source DIY VR headset project with full hardware, software, and firmware designs, built around an Arduino-compatible I… | 23 | 7237 | active |
| hathach/tinyusb TinyUSB is an open-source, cross-platform USB Host and Device stack for embedded systems written in C. It is designed for memory safety (no… | 88 | 7055 | stable |
| littlefs-project/littlefs littlefs is a small fail-safe filesystem library written in C, designed for microcontrollers and flash storage. It provides power-loss resi… | 75 | 6909 | stable |
| peng-zhihui/HelloWord-Keyboard An open-source modular smart mechanical keyboard project (Hanwen/HelloWord) including full hardware design files (10 PCBs, enclosures, 3D m… | 32 | 6655 | active |
| U8g2 U8g2 is a monochrome graphics library for embedded devices, supporting a wide range of OLED and LCD display controllers with drawing primit… | 77 | 6648 | stable |
| BruceDevices/firmware Bruce is an open-source (AGPL-3.0) ESP32 firmware packed with offensive-security and Red Team tools such as WiFi attacks, Evil Portal, ward… | 90 | 6570 | active |
| espressif/esptool esptool is a Python-based, platform-independent serial utility for flashing firmware, provisioning, and interacting with Espressif SoCs suc… | 97 | 6457 | stable |
| tock/tock Tock is an embedded operating system for low-power, low-memory microcontrollers that runs multiple concurrent, mutually distrustful applica… | 67 | 6423 | active |
| FASTSHIFT/X-TRACK An open-source GPS bicycle computer (speedometer) built on an AT32F435 MCU with an LVGL-based UI, supporting offline maps, real-time positi… | 46 | 6277 | active |
| lmarzen/esp32-weather-epd A low-power weather display firmware for an ESP32 microcontroller driving a 7.5-inch E-Paper panel, fetching data from the OpenWeatherMap A… | 74 | 6242 | active |
| TianoCore EDK II EDK II is TianoCore's open-source, cross-platform firmware development environment implementing the UEFI and PI specifications. It provides… | 90 | 6214 | active |
| wasm-micro-runtime/wasm-micro-runtime WebAssembly Micro Runtime (WAMR) is a lightweight standalone WebAssembly runtime with a small footprint, supporting interpreter, AOT, and J… | 92 | 6075 | active |
| RIOT-OS/RIOT RIOT is an open-source, vendor-independent operating system for Internet of Things and embedded devices, supporting 8/16/32-bit microcontro… | 95 | 5778 | active |
| seL4/seL4 seL4 is a formally verified microkernel operating system kernel written in C, providing high-assurance isolation and capability-based secur… | 89 | 5717 | active |
| armbian/build The official build framework for the Armbian Linux distribution, a shell-based toolchain that compiles customizable Debian- or Ubuntu-based… | 95 | 5378 | active |
| portapack-mayhem/mayhem-firmware Mayhem is open-source firmware for the HackRF One combined with the PortaPack H1/H2/H4/H4M add-on, turning the SDR into a standalone touchs… | 83 | 5361 | active |
| ExpressLRS/ExpressLRS ExpressLRS is an open source radio control link firmware for RC applications, built on Semtech SX127x/SX1280 LoRa hardware with Espressif o… | 93 | 5286 | active |
| OpenCat OpenCat is an open-source Arduino/Raspberry Pi framework for building and programming quadruped robot pets like the Bittle robot dog and Ny… | 74 | 5219 | active |
| u-boot/u-boot Das U-Boot is a widely used open-source bootloader for embedded boards based on PowerPC, ARM, MIPS, and other processors. It is installed i… | 77 | 5208 | active |
| stlink-org/stlink An open-source toolset for programming and debugging STM32 microcontrollers via STLINK programmer hardware, including flash tools, a GDB se… | 66 | 5145 | active |
| Arduino-IRremote/Arduino-IRremote An Arduino library for sending and receiving infrared remote control signals across many IR protocols. It lets Arduino sketches decode sign… | 87 | 5019 | stable |
| Raspberry Pi Pico SDK The official C/C++ SDK for Raspberry Pi Pico and other RP-series microcontrollers, providing headers, libraries, and a CMake-based build sy… | 88 | 4940 | stable |
| Bodmer/TFT_eSPI An Arduino and PlatformIO compatible TFT display library optimized for ESP8266, ESP32, RP2040 (Raspberry Pi Pico), and STM32 microcontrolle… | 57 | 4888 | active |
| open-sdr/openwifi Open-source full-stack IEEE 802.11/Wi-Fi design based on Software Defined Radio, including a Linux mac80211-compatible driver and software,… | 68 | 4772 | active |
| F5OEO/rpitx rpitx is a general RF transmitter for Raspberry Pi that generates radio signals from 5 KHz to 1500 MHz using only a GPIO-connected wire ant… | 23 | 4527 | active |
| hzeller/rpi-rgb-led-matrix A C++ library (with Python bindings) for driving HUB75-style RGB LED matrix panels directly from Raspberry Pi GPIO pins, supporting multipl… | 76 | 4362 | stable |
| YosysHQ/picorv32 PicoRV32 is a size-optimized RISC-V RV32IMC CPU core written in Verilog, configurable as RV32E/I/IC/IM/IMC with optional interrupt controll… | 66 | 4362 | stable |
| jrowberg/i2cdevlib A collection of uniform, Doxygen-documented C++ classes providing interfaces to a wide range of I2C peripheral devices such as acceleromete… | 48 | 4266 | stable |
| zmkfirmware/zmk ZMK Firmware is an open source (MIT) keyboard firmware built on the Zephyr RTOS, designed for modern wireless (BLE) and wired mechanical ke… | 75 | 4239 | active |
| iNavFlight/inav INAV is open-source navigation-enabled flight controller firmware for drones, planes, and other RC aircraft. It provides autopilot features… | 88 | 4199 | active |
| AsahiLinux/m1n1 m1n1 is a bootloader and experimentation playground for Apple Silicon Macs, part of the Asahi Linux project. It loads Linux kernels, device… | 87 | 4178 | active |
| byrantech/laptop anyon_e is a fully open-source, high-end laptop design built around the Rockchip RK3588 SoC, including KiCad schematics and layouts for the… | 57 | 4166 | active |
| dorianborian/sesame-robot Sesame is an open-source, 3D-printable mini quadruped robot powered by an ESP32 microcontroller and eight servo motors, featuring an expres… | 61 | 4160 | active |
| tmk/tmk_keyboard A collection of keyboard and converter firmware projects built on the tmk_core keyboard library, targeting Atmel AVR and ARM Cortex-M micro… | 75 | 4132 | active |
| Joshua-Riek/ubuntu-rockchip A community project that builds and maintains Ubuntu images for Rockchip RK35xx-based single board computers like the Orange Pi 5, Radxa RO… | 10 | 4109 | active |
| scottbez1/splitflap An open-source DIY split-flap display project based on ESP32, including mechanical designs (OpenSCAD), electronics (KiCad), and firmware (A… | 78 | 4090 | active |
| dekuNukem/daytripper Daytripper is an open-source hardware laser tripwire consisting of a wireless transmitter and a USB receiver that hides windows, locks the … | 50 | 4040 | active |
| openthread/openthread OpenThread is Google's open-source, Thread Certified implementation of the Thread networking protocol, covering all Thread networking layer… | 98 | 4020 | stable |
| apache/nuttx Apache NuttX is a mature, open-source real-time operating system (RTOS) for embedded systems with an emphasis on POSIX/ANSI standards compl… | 77 | 4010 | stable |
| StuckAtPrototype/Racer An open-source hardware and firmware project for a tiny PCB-based RC car built around the ESP32-H2, including KiCad schematics, gerbers, 3D… | 46 | 3765 | active |
| blackmagic-debug/blackmagic Black Magic Debug is a self-contained in-application debugger for ARM Cortex and RISC-V microcontrollers that requires no configuration fil… | 10 | 3719 | active |
| littlekernel/lk LK (Little Kernel) is a small SMP-aware embedded kernel written in C, portable to many 32- and 64-bit CPU architectures including ARM, RISC… | 77 | 3667 | active |
| quickjs-ng/quickjs QuickJS-NG is a small, embeddable JavaScript engine written in C that aims to support the latest ECMAScript specification. It is an activel… | 89 | 3656 | active |
| libopencm3/libopencm3 An open-source firmware library written in C for ARM Cortex-M microcontrollers, supporting families like ST STM32, Atmel SAM, NXP LPC, TI T… | 74 | 3639 | active |
| buildroot/buildroot Buildroot is a Makefile-based tool that generates complete embedded Linux systems through cross-compilation, producing toolchains, bootload… | 77 | 3628 | stable |
| opulo-inc/lumenpnp The LumenPnP is an open source pick and place machine that assembles electronic components onto circuit boards. The repository contains the… | 78 | 3617 | active |
| lowRISC/opentitan OpenTitan is an open-source silicon Root of Trust (RoT) project providing commercial-grade, security-certified hardware IP blocks written i… | 83 | 3607 | stable |
| crankyoldgit/IRremoteESP8266 An Arduino library for ESP8266 and ESP32 that enables sending and receiving infrared remote control signals using common 940nm IR LEDs and … | 76 | 3574 | stable |
| SpacehuhnTech/esp8266_deauther ESP8266 Deauther is open-source firmware that turns an ESP8266 microcontroller into a WiFi testing tool capable of scanning networks, sendi… | 23 | 14943 | maintenance |
| eclipse-threadx/threadx Eclipse ThreadX is an advanced real-time operating system (RTOS) for deeply embedded applications, featuring a picokernel architecture, pre… | 87 | 3513 | active |
| MuShibo/Micro-Wheeled_leg-Robot An open-source desktop two-wheeled legged robot project with full mechanical, PCB, and firmware designs. It is built around an ESP32 runnin… | 23 | 3482 | active |
| adafruit/Adafruit_NeoPixel An Arduino library for controlling single-wire LED pixels and strips such as NeoPixels, WS2812, and Adafruit FLORA pixels. It supports a wi… | 82 | 3416 | stable |
| VESC VESC is the open-source firmware for the VESC DC/BLDC/FOC motor controllers, written in C for STM32-based boards. It supports many hardware… | 77 | 3388 | stable |
| InfiniTimeOrg/InfiniTime InfiniTime is open-source firmware for the PineTime smartwatch, written in modern C++ on top of FreeRTOS for the nRF52 microcontroller. It … | 88 | 3362 | active |
| atc1441/ATC_MiThermometer Custom open-source firmware for the Xiaomi LYWSD03MMC Bluetooth thermometer/hygrometer, plus a web-based Telink OTA flasher and a Python US… | 34 | 3343 | active |
| ZSWatch/ZSWatch ZSWatch is a fully open-source smartwatch project covering both hardware (KiCad PCB designs) and firmware written in C on the Zephyr RTOS w… | 85 | 3340 | active |
| WiringPi/WiringPi WiringPi is a fast C library for accessing GPIO pins on Raspberry Pi boards by directly manipulating hardware registers. It also ships with… | 80 | 3335 | active |
| stm32duino/Arduino_Core_STM32 The official Arduino core that adds STM32 microcontroller support to the Arduino IDE, built on STM32Cube HAL/LL APIs, CMSIS, and the GNU Ar… | 89 | 3331 | active |
| dbisu/pico-ducky A project that turns a Raspberry Pi Pico into a USB Rubber Ducky-style HID injection device running CircuitPython. It executes Ducky Script… | 71 | 3307 | active |
| vadimcn/codelldb CodeLLDB is a VSCode extension providing a native-code debugger powered by LLDB, with a Rust-based adapter. It supports C++, Rust, and othe… | 95 | 3280 | active |
| MiSTer-devel/Main_MiSTer The main binary and wiki repository for MiSTer, an open-source FPGA-based retro gaming and computing platform running on Terasic DE10-Nano … | 77 | 3277 | active |
| SpinalHDL/VexRiscv VexRiscv is a parameterizable 32-bit RISC-V CPU core written in SpinalHDL that generates Verilog for FPGA deployment. It supports RV32I[M][… | 62 | 3232 | active |
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