There are 3 repositories under atmel-avr topic.
Open-source keyboard firmware for Atmel AVR and Arm USB families
UPDI programmer software for Arduino (targets Tiny AVR-0/1/2, Mega AVR-0 and AVR-DA/DB MCUs)
No RTOS need any more, you will see... Function pointers queues classes library for Arduino or any other platform. Use it anywhere. Manipulate your tasks in an easy and flexible way, keep your interrupts extremely fast!
EX-CommandStation firmware from DCC-EX. Includes support for WiFi and a standalone WiThrottle server. A complete re-write of the original DCC++.
Atmel AVR: development platform for PlatformIO
On-chip debugging for AVR and RISC-V microcontrollers, on GNU/Linux
TinyCore boards / attiny 1 series Core, Arduino IDE Core, targets ATtiny 417 / 814 / 816 / 817 / 1614 / 1616 / 1617 / 3217 and similar MCUs
An Arduino Mega Operating System With TFT TouchScreen Support, pretty GUI and other mumbo-jumbo I may come up with
This is a simple CW beacon project based on Arduino and Si5351 clock generator. It transmits a predefined message as morse code on a fixed frequency.
Header-only library for bare metal hardware programming in C with a pleasant generic style.
Embedded Systems in D - Port of avr-libc headers and most avr-gcc processor defines
AVR Microcontroller Programming with Assembly
QMK based 5x12 ortholinear keyboard
ATtiny High-voltage Serial Programmer with Chip Erase function
Minimal, production-ready timeout library for Arduino. With pause / resume.
Fastest library to control TM1638 chip (for example: "LED AND KEY") based modules
Complete Arduino project to build a Remote Controlled Car together with the bluetooth linked Remote Controller
USB Serial firmware for Adafruit's Atmega32U4 breakout board (discontinued) created using Atmel Studio 7 and LUFA.
MPLAB X IDE Docker file build-args; avrgcc,armgcc,xc8,xc16,xc32,legacy,harmony
This is a simple circuit that augments the second gen Suzuki SV650 to have a gear position indicator.
Fork of CMake original repository, but with additional support for Atmel Studio 7 IDE
NanoUPDI: The smallest USB Type-C serial UPDI programmer for your projects
Title: SPLAT-CIWS. Simple Projectile Locating and Aiming Tower (SPLAT) - a Close in Weapons System (CIWS) for Missile Defense by Vikram Bala and Andy Liu. ESE350 Spring 2022 Final Project.
A lagless implementation of a SNES controller for use on the Neo Geo, using the ATTINY2313
Complete buttons to switches library implemented for Arduino, with flags update automation, function callbacks, all encapsulated in classes sharing a common API for simplest implementation, use, modification or replacement when needed.
PlatformIO example project to build the canonical blink code for the Digispark USB development board with an Atmel AVR ATtiny85 microcontroller
Atmel AVR Tiny, Mega, xMega series microcontroller FLASH and EEPROM memory programmer
A Liquid Crystal Display(LCD) library for 8 * 1, 8 * 2 and 16 * 2 lcd for AVR microcontrollers by Microchip.
A vusb-based mouse using a potentiometer joystick and some buttons
Cross-platform Arduino library for controlling and powering devices on a two-wire bus.
Embedded Assembly LED project that uses AVR Microcontroller with Arduino
A windows utility tool for USBasp based USB AVR Programmer