qmk / qmk_firmware

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

MarlinFirmware / Marlin

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.

libopencm3 / libopencm3

Open source ARM Cortex-M microcontroller library

avrdudes / avrdude

AVRDUDE is a utility to program AVR microcontrollers

dontsovcmc / waterius

Передача показаний воды по Wi-Fi. Watermeter Wi-Fi transmitter.

atsamd-rs / atsamd

Target atsamd microcontrollers using Rust

gin66 / FastAccelStepper

A high speed stepper library for Atmega 168/328p (nano), Atmega32u4, Atmega 2560, ESP32, ESP32S2, ESP32S3, ESP32C3, ESP32C6, Atmel SAM Due, SAMD51, Raspberry pi pico and pico 2