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Atmel AVR microcontrollers are a major player in hobby electronics.
They are great for prototyping because:
All AVR chips can be devided into 4 main groups. Only 2 are available in DIP formats.
Tiny's are the low-cost branch of the AVR family.
Mega's are the most popular AVR family with hobbiests. The Arduino is powered with an AtMega.
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