avr

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. | 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.

A professional collaborative platform for embedded development 👽

All CPU and MCU documentation in one place

ATTiny usb bootloader with a strong emphasis on bootloader compactness.

Arduino core for ATtiny 1634, 828, x313, x4, x41, x5, x61, x7 and x8

ᕲ Duino-Coin is a coin that can be mined with almost everything, including Arduino boards.

Arduino generic menu/interactivity system

Arduino hardware package for ATmega8, ATmega48, ATmega88, ATmega168, ATmega328 and ATmega328PB

embedded-hal abstractions for AVR microcontrollers

T12 Quick Heating Soldering Station

A FreeRTOS Library for all Arduino AVR Devices (Uno, Leonardo, Mega, etc)

modm: a C++20 library generator for AVR and ARM Cortex-M devices

Start your Arduino projects right out of the box

Arduino hardware package for ATmega1284, ATmega644, ATmega324, ATmega324PB, ATmega164, ATmega32, ATmega16 and ATmega8535

Easy AVR USB Keyboard Firmware and Keymapper

[deprecated; merged upstream] A fork of the Rust programming language with AVR support

A light-weight Arduino hardware package for ATtiny13

A lightweight, secure, easy-to-use crypto library suitable for constrained environments.

Arduino core for the tinyAVR 0/1/2-series - this is any ATtiny with 2, 4, 6, or 7 in the 1's place, 0, 1, or 2 in the tens, and the flash size in the remaining digits. LIBRARY AUTHORS - Does your library have issues with this core? Please touch base w/me so we can ensure a solution that works on all parts and won't be broken by future changes