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

• UpdatedNov 5, 2025
• Go

The official firmware for Meshtastic, an open-source, off-grid mesh communication system.

• UpdatedNov 6, 2025
• C++

Firmware for Pinetime smartwatch written in C++ and based on FreeRTOS

• UpdatedNov 5, 2025
• C

🌱💧 An open source DIY soil moisture sensor

• UpdatedMay 2, 2025
• C

Cooperative multitasking for Arduino, ESPx, STM32, nRF and other microcontrollers

• UpdatedNov 3, 2025
• C++

Rust keyboard firmware library with layers, macros, real-time keymap editing, wireless(BLE) and split support

• UpdatedNov 5, 2025
• Rust

A fork of the NimBLE library structured for compilation with Arduino, for use with ESP32, nRF5x.

• UpdatedOct 31, 2025
• C

Device Firmware Update library and Android app

• UpdatedOct 29, 2025
• Java

Project to provide functionality similar to ESPHome but for Zigbee instead of WiFi for nRF52 & nRF53

• UpdatedNov 4, 2025
• Go

OTA DFU Library for Mac and iOS, compatible with nRF5x SoCs

• UpdatedJun 10, 2025
• Swift

A Rust HAL for the nRF family of devices

• UpdatedOct 12, 2025
• Rust

A ble keyboard firmware using nrf52810/52832

• UpdatedNov 10, 2024
• C

The complete codebase for Frame

• UpdatedOct 5, 2025
• C

Portable C libraries which provide APIs to build applications with u-blox products and services. Delivered as add-on to existing microcontroller and RTOS SDKs.

• UpdatedNov 11, 2024
• C

CMake toolchain configurations for ARM

• UpdatedMar 11, 2025
• CMake

Arduino library to use Semtech SX126x LoRa chips and modules to communicate

• UpdatedOct 23, 2025
• C++

e-ink display firmware for Nordic nRF51/nRF52, with support for image transfer, OTA update.

• UpdatedNov 5, 2025
• C

Jo's Embedded Serial File System (for Standard Serial NOR-Flash)

• UpdatedAug 19, 2025
• C

Micropython ported to the Monocle

• UpdatedApr 6, 2024
• C

PineTime Smart Watch firmware based on Rust and Apache Mynewt OS

• UpdatedApr 21, 2021
• Assembly