Adafruit will not be shipping USPS orders Monday February 18, 2019 for the federal holiday, Presidents Day.
Expedited USPS orders placed after 11am ET Friday February 15 will go out Tuesday February 19.
Over the years I’ve written a few fairly lengthy tutorials relating to AVRs. Originally, I posted these over on the AVRFreak’s Tutorials forums, but after many requests for PDF versions and after becomming frustrated at the lack of typesetting expressiveness given in the forum software, I converted over the text into LaTeX.
Now the tutorials are available in PDF form, and can be freely redistributed under an MIT license. I’ve even put up a public mirror of the tutorial LaTeX source SVN repository, so that others can fork off and examine past revisions of the files as I update them in the future.
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I used these a few weeks ago, they were very helpful. Having been only using the Arduino environment for programming I had become rusty at AVR programming, but I think the current AVR studio is a nice upgrade from Codevision I learned on, and the ATtiny13 datasheet I was using a few weeks ago is a much easier read than the ATmega324p datasheet i learned on.