Starting Atmel AVR C Programming Tutorial 2 | ermicroblog
The AVR Microcontroller and Embedded Systems Using Assembly and C: Using Arduino Uno and Atmel Studio: Naimi, Sepehr, Naimi, Sarmad, Mazidi, Muhammad Ali: 9780997925968: Amazon.com: Books
Gerd's AVR simulator
Explore AVR assembly language - Arduino Project Hub