Learn to program in C or assembler.
Learn to blink an LED.
Learn to user various forms of serial communications.
Learn to control an LCD.
Learn to control a motor.
Learn to read sensors.
You can check out RVKBasic at bastoc.com as well. If you like BASIC over C and ASM. ASM on the atmel is not hard though, so you might want to try it first.
Learn to program in C or assembler.
Learn to blink an LED.
Learn to user various forms of serial communications.
Learn to control an LCD.
Learn to control a motor.
Learn to read sensors.